Bump github.com/google/go-containerregistry from 0.20.7 to 0.21.0

Bumps [github.com/google/go-containerregistry](https://github.com/google/go-containerregistry) from 0.20.7 to 0.21.0.
- [Release notes](https://github.com/google/go-containerregistry/releases)
- [Commits](google/go-containerregistry@v0.20.7...v0.21.0)

---
updated-dependencies:
- dependency-name: github.com/google/go-containerregistry
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -246,7 +246,7 @@ require (
 	github.com/google/btree v1.1.3
 	github.com/google/cel-go v0.27.0
 	github.com/google/go-cmp v0.7.0
-	github.com/google/go-containerregistry v0.20.7
+	github.com/google/go-containerregistry v0.21.2
 	github.com/google/gofuzz v1.2.0
 	github.com/google/gopacket v1.1.19
 	github.com/google/uuid v1.6.0
@@ -545,15 +545,15 @@ require (
 	github.com/containerd/fifo v1.1.0 // indirect
 	github.com/containerd/log v0.1.0 // indirect
 	github.com/containerd/platforms v1.0.0-rc.1 // indirect
-	github.com/containerd/stargz-snapshotter/estargz v0.18.1 // indirect
+	github.com/containerd/stargz-snapshotter/estargz v0.18.2 // indirect
 	github.com/containerd/ttrpc v1.2.7 // indirect
 	github.com/containernetworking/plugins v1.4.1 // indirect
 	github.com/dennwc/varint v1.0.0 // indirect
 	github.com/dgryski/go-jump v0.0.0-20211018200510-ba001c3ffce0 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/digitalocean/go-metadata v0.0.0-20250129100319-e3650a3df44b // indirect
 	github.com/digitalocean/godo v1.171.0 // indirect
-	github.com/docker/cli v29.0.3+incompatible // indirect
+	github.com/docker/cli v29.2.1+incompatible // indirect
 	github.com/docker/distribution v2.8.3+incompatible // indirect
 	github.com/docker/docker-credential-helpers v0.9.3 // indirect
 	github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c // indirect