chore(deps): bump github.com/google/go-containerregistry

Bumps [github.com/google/go-containerregistry](https://github.com/google/go-containerregistry) from 0.21.1 to 0.21.2.
- [Release notes](https://github.com/google/go-containerregistry/releases)
- [Commits](google/go-containerregistry@v0.21.1...v0.21.2)

---
updated-dependencies:
- dependency-name: github.com/google/go-containerregistry
  dependency-version: 0.21.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go.mod

@@ -4,7 +4,7 @@ go 1.25.6
 
 require (
 	github.com/containerd/platforms v0.2.1
-	github.com/google/go-containerregistry v0.21.1
+	github.com/google/go-containerregistry v0.21.2
 	github.com/opencontainers/image-spec v1.1.1
 	github.com/sebdah/goldie/v2 v2.8.0
 	github.com/sigstore/cosign/v2 v2.6.2

go.sum

@@ -185,8 +185,8 @@ github.com/google/certificate-transparency-go v1.3.2 h1:9ahSNZF2o7SYMaKaXhAumVEz
 github.com/google/certificate-transparency-go v1.3.2/go.mod h1:H5FpMUaGa5Ab2+KCYsxg6sELw3Flkl7pGZzWdBoYLXs=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
-github.com/google/go-containerregistry v0.21.1 h1:sOt/o9BS2b87FnR7wxXPvRKU1XVJn2QCwOS5g8zQXlc=
-github.com/google/go-containerregistry v0.21.1/go.mod h1:ctO5aCaewH4AK1AumSF5DPW+0+R+d2FmylMJdp5G7p0=
+github.com/google/go-containerregistry v0.21.2 h1:vYaMU4nU55JJGFC9JR/s8NZcTjbE9DBBbvusTW9NeS0=
+github.com/google/go-containerregistry v0.21.2/go.mod h1:ctO5aCaewH4AK1AumSF5DPW+0+R+d2FmylMJdp5G7p0=
 github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
 github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/s2a-go v0.1.9 h1:LGD7gtMgezd8a/Xak7mEWL0PjoTQFvpRudN895yqKW0=