CP/DP Split: Remove prometheus logger

The prometheus logger is no longer needed since we don't collect nginx metrics in the control plane anymore.

Also updated agent dependencies to fix the broken build.

Author: sjberman

go.mod

@@ -3,25 +3,23 @@ module github.com/nginx/nginx-gateway-fabric
 go 1.24.0
 
 require (
-	github.com/fsnotify/fsnotify v1.8.0
-	github.com/go-kit/log v0.2.1
+	github.com/fsnotify/fsnotify v1.9.0
 	github.com/go-logr/logr v1.4.2
 	github.com/google/go-cmp v0.7.0
 	github.com/google/uuid v1.6.0
-	github.com/nginx/agent/v3 v3.0.0-20250120091728-0f0c0e2478aa
+	github.com/nginx/agent/v3 v3.0.0-20250429163223-735f50381a9e
 	github.com/nginx/telemetry-exporter v0.1.3
 	github.com/onsi/ginkgo/v2 v2.23.4
 	github.com/onsi/gomega v1.37.0
-	github.com/prometheus/client_golang v1.20.5
-	github.com/prometheus/common v0.60.1
+	github.com/prometheus/client_golang v1.22.0
 	github.com/spf13/cobra v1.9.1
 	github.com/spf13/pflag v1.0.6
 	go.opentelemetry.io/otel v1.35.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.35.0
 	go.uber.org/zap v1.27.0
-	golang.org/x/text v0.23.0
-	google.golang.org/grpc v1.71.0
-	google.golang.org/protobuf v1.36.5
+	golang.org/x/text v0.24.0
+	google.golang.org/grpc v1.71.1
+	google.golang.org/protobuf v1.36.6
 	k8s.io/api v0.32.3
 	k8s.io/apiextensions-apiserver v0.32.3
 	k8s.io/apimachinery v0.32.3
@@ -32,15 +30,14 @@ require (
 )
 
 require (
-	buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.33.0-20240401165935-b983156c5e99.1 // indirect
+	buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.36.4-20250130201111-63bb56e20495.1 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/emicklei/go-restful/v3 v3.12.0 // indirect
 	github.com/evanphx/json-patch/v5 v5.9.11 // indirect
 	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
-	github.com/go-logfmt/logfmt v0.6.0 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-logr/zapr v1.3.0 // indirect
 	github.com/go-openapi/jsonpointer v0.21.0 // indirect
@@ -53,19 +50,19 @@ require (
 	github.com/google/gnostic-models v0.6.8 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/google/pprof v0.0.0-20250403155104-27863c87afa6 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/compress v1.17.11 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.11.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/prometheus/common v0.62.0 // indirect
+	github.com/prometheus/procfs v0.16.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0 // indirect
@@ -76,16 +73,16 @@ require (
 	go.uber.org/automaxprocs v1.6.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/mod v0.24.0 // indirect
-	golang.org/x/net v0.38.0 // indirect
+	golang.org/x/net v0.39.0 // indirect
 	golang.org/x/oauth2 v0.27.0 // indirect
-	golang.org/x/sync v0.12.0 // indirect
+	golang.org/x/sync v0.13.0 // indirect
 	golang.org/x/sys v0.32.0 // indirect
-	golang.org/x/term v0.30.0 // indirect
+	golang.org/x/term v0.31.0 // indirect
 	golang.org/x/time v0.7.0 // indirect
 	golang.org/x/tools v0.31.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20250218202821-56aae31c358a // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250303144028-a0af3efb3deb // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250303144028-a0af3efb3deb // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect