build(deps): bump actions/attest-build-provenance (#272)

Bumps the github-actions group with 1 update: [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance).
Updates `actions/attest-build-provenance` from 2.2.3 to 2.3.0
- [Release notes](https://github.com/actions/attest-build-provenance/releases)
- [Changelog](https://github.com/actions/attest-build-provenance/blob/main/RELEASE.md)
- [Commits](actions/attest-build-provenance@c074443...db473fd)

Author: dependabot[bot]

.github/workflows/release.yml

@@ -54,7 +54,7 @@ jobs:
         labels: ${{ steps.docker-meta.outputs.labels }}
 
     - name: Attest image
-      uses: actions/attest-build-provenance@c074443f1aee8d4aeeae555aebba3282517141b2  # v2.2.3
+      uses: actions/attest-build-provenance@db473fddc028af60658334401dc6fa3ffd8669fd  # v2.3.0
       with:
         subject-name: index.docker.io/${{ env.DOCKER_IMAGE_NAME }}
         subject-digest: ${{ steps.docker-push.outputs.digest }}