chore(deps): Bump the sigstore group with 6 updates (#1832)

Bumps the sigstore group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [github.com/sigstore/sigstore](https://github.com/sigstore/sigstore) | `1.9.3` | `1.9.4` |
| [github.com/sigstore/sigstore-go](https://github.com/sigstore/sigstore-go) | `0.7.1` | `0.7.2` |
| [github.com/sigstore/sigstore/pkg/signature/kms/aws](https://github.com/sigstore/sigstore) | `1.9.3` | `1.9.4` |
| [github.com/sigstore/sigstore/pkg/signature/kms/azure](https://github.com/sigstore/sigstore) | `1.9.3` | `1.9.4` |
| [github.com/sigstore/sigstore/pkg/signature/kms/gcp](https://github.com/sigstore/sigstore) | `1.9.3` | `1.9.4` |
| [github.com/sigstore/sigstore/pkg/signature/kms/hashivault](https://github.com/sigstore/sigstore) | `1.9.3` | `1.9.4` |


Updates `github.com/sigstore/sigstore` from 1.9.3 to 1.9.4
- [Release notes](https://github.com/sigstore/sigstore/releases)
- [Commits](sigstore/sigstore@v1.9.3...v1.9.4)

Updates `github.com/sigstore/sigstore-go` from 0.7.1 to 0.7.2
- [Release notes](https://github.com/sigstore/sigstore-go/releases)
- [Commits](sigstore/sigstore-go@v0.7.1...v0.7.2)

Updates `github.com/sigstore/sigstore/pkg/signature/kms/aws` from 1.9.3 to 1.9.4
- [Release notes](https://github.com/sigstore/sigstore/releases)
- [Commits](sigstore/sigstore@v1.9.3...v1.9.4)

Updates `github.com/sigstore/sigstore/pkg/signature/kms/azure` from 1.9.3 to 1.9.4
- [Release notes](https://github.com/sigstore/sigstore/releases)
- [Commits](sigstore/sigstore@v1.9.3...v1.9.4)

Updates `github.com/sigstore/sigstore/pkg/signature/kms/gcp` from 1.9.3 to 1.9.4
- [Release notes](https://github.com/sigstore/sigstore/releases)
- [Commits](sigstore/sigstore@v1.9.3...v1.9.4)

Updates `github.com/sigstore/sigstore/pkg/signature/kms/hashivault` from 1.9.3 to 1.9.4
- [Release notes](https://github.com/sigstore/sigstore/releases)
- [Commits](sigstore/sigstore@v1.9.3...v1.9.4)

---
updated-dependencies:
- dependency-name: github.com/sigstore/sigstore
  dependency-version: 1.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: sigstore
- dependency-name: github.com/sigstore/sigstore-go
  dependency-version: 0.7.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: sigstore
- dependency-name: github.com/sigstore/sigstore/pkg/signature/kms/aws
  dependency-version: 1.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: sigstore
- dependency-name: github.com/sigstore/sigstore/pkg/signature/kms/azure
  dependency-version: 1.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: sigstore
- dependency-name: github.com/sigstore/sigstore/pkg/signature/kms/gcp
  dependency-version: 1.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: sigstore
- dependency-name: github.com/sigstore/sigstore/pkg/signature/kms/hashivault
  dependency-version: 1.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: sigstore
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -28,7 +28,7 @@ require (
 	github.com/ryanuber/go-glob v1.0.0
 	github.com/sigstore/cosign/v2 v2.5.0
 	github.com/sigstore/rekor v1.3.10
-	github.com/sigstore/sigstore v1.9.3
+	github.com/sigstore/sigstore v1.9.4
 	github.com/stretchr/testify v1.10.0
 	github.com/theupdateframework/go-tuf v0.7.0
 	github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399
@@ -37,7 +37,7 @@ require (
 	golang.org/x/net v0.39.0
 	golang.org/x/sys v0.32.0 // indirect
 	golang.org/x/time v0.11.0
-	google.golang.org/grpc v1.71.0 // indirect
+	google.golang.org/grpc v1.71.1 // indirect
 	google.golang.org/protobuf v1.36.6
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/api v0.32.3
@@ -64,24 +64,24 @@ require (
 	github.com/go-jose/go-jose/v4 v4.1.0
 	github.com/sigstore/protobuf-specs v0.4.1
 	github.com/sigstore/scaffolding v0.7.22
-	github.com/sigstore/sigstore-go v0.7.1
-	github.com/sigstore/sigstore/pkg/signature/kms/aws v1.9.3
-	github.com/sigstore/sigstore/pkg/signature/kms/azure v1.9.3
-	github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.9.3
-	github.com/sigstore/sigstore/pkg/signature/kms/hashivault v1.9.3
+	github.com/sigstore/sigstore-go v0.7.2
+	github.com/sigstore/sigstore/pkg/signature/kms/aws v1.9.4
+	github.com/sigstore/sigstore/pkg/signature/kms/azure v1.9.4
+	github.com/sigstore/sigstore/pkg/signature/kms/gcp v1.9.4
+	github.com/sigstore/sigstore/pkg/signature/kms/hashivault v1.9.4
 	github.com/spf13/viper v1.20.1
 	knative.dev/hack/schema v0.0.0-20240607132042-09143140a254
 	knative.dev/pkg v0.0.0-20230612155445-74c4be5e935e
 )
 
 require (
-	cloud.google.com/go v0.118.3 // indirect
-	cloud.google.com/go/auth v0.15.0 // indirect
+	cloud.google.com/go v0.120.0 // indirect
+	cloud.google.com/go/auth v0.16.0 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
 	cloud.google.com/go/compute/metadata v0.6.0 // indirect
-	cloud.google.com/go/iam v1.4.1 // indirect
-	cloud.google.com/go/kms v1.21.1 // indirect
-	cloud.google.com/go/longrunning v0.6.5 // indirect
+	cloud.google.com/go/iam v1.5.0 // indirect
+	cloud.google.com/go/kms v1.21.2 // indirect
+	cloud.google.com/go/longrunning v0.6.6 // indirect
 	contrib.go.opencensus.io/exporter/ocagent v0.7.1-0.20200907061046-05415f1de66d // indirect
 	contrib.go.opencensus.io/exporter/prometheus v0.4.2 // indirect
 	cuelang.org/go v0.12.1 // indirect
@@ -115,8 +115,8 @@ require (
 	github.com/alibabacloud-go/tea-xml v1.1.3 // indirect
 	github.com/aliyun/credentials-go v1.3.2 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
-	github.com/aws/aws-sdk-go-v2/config v1.29.13 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.17.66 // indirect
+	github.com/aws/aws-sdk-go-v2/config v1.29.14 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.17.67 // indirect
 	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.30 // indirect
 	github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.34 // indirect
 	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.34 // indirect
@@ -125,10 +125,10 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/ecrpublic v1.31.2 // indirect
 	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.12.3 // indirect
 	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.12.15 // indirect
-	github.com/aws/aws-sdk-go-v2/service/kms v1.38.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/kms v1.38.3 // indirect
 	github.com/aws/aws-sdk-go-v2/service/sso v1.25.3 // indirect
 	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.30.1 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.33.18 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.33.19 // indirect
 	github.com/aws/smithy-go v1.22.2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/blang/semver v3.5.1+incompatible // indirect
@@ -252,8 +252,8 @@ require (
 	go.mongodb.org/mongo-driver v1.14.0 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.59.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.59.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
 	go.opentelemetry.io/otel v1.35.0 // indirect
 	go.opentelemetry.io/otel/metric v1.35.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.35.0 // indirect
@@ -269,10 +269,10 @@ require (
 	golang.org/x/text v0.24.0 // indirect
 	golang.org/x/tools v0.30.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
-	google.golang.org/api v0.228.0 // indirect
+	google.golang.org/api v0.229.0 // indirect
 	google.golang.org/genproto v0.0.0-20250303144028-a0af3efb3deb // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20250303144028-a0af3efb3deb // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250313205543-e70fdf4c4cb4 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250414145226-207652e42e2e // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250414145226-207652e42e2e // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect