chore(deps): bump actions/attest-build-provenance from 1 to 2

Bumps [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance) from 1 to 2.
- [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@v1...v2)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/publish.yml

@@ -88,7 +88,7 @@ jobs:
       # Skip step because unsupported env variable: ACTIONS_ID_TOKEN_REQUEST_URL
       # See https://github.com/nektos/act/issues/329
       - name: Generate artifact attestation
-        uses: actions/attest-build-provenance@v1
+        uses: actions/attest-build-provenance@v2
         if: ${{ !env.ACT && github.event_name != 'pull_request' }}
         with:
           subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}