Bump actions/attest-build-provenance from 2.2.3 to 2.3.0 (#45)

Bumps [actions/attest-build-provenance](https://github.com/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)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-version: 2.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marcela Melara <[email protected]>

Author: dependabot[bot]

.github/workflows/test-buildenv-l1-container.yml

@@ -28,7 +28,7 @@ jobs:
 
       - name: Generate SLSA Provenance
         id: slsa
-        uses: actions/attest-build-provenance@c074443f1aee8d4aeeae555aebba3282517141b2 # v2.2.3
+        uses: actions/attest-build-provenance@db473fddc028af60658334401dc6fa3ffd8669fd # v2.3.0
         with:
           subject-name: "test_l1"
           subject-digest: ${{ steps.build.outputs.digest }}

.github/workflows/test-buildenv-l2-container.yml

@@ -48,7 +48,7 @@ jobs:
 
       - name: Generate SLSA Provenance
         id: slsa
-        uses: actions/attest-build-provenance@c074443f1aee8d4aeeae555aebba3282517141b2 # v2.2.3
+        uses: actions/attest-build-provenance@db473fddc028af60658334401dc6fa3ffd8669fd # v2.3.0
         with:
           subject-name: "test_l2"
           subject-digest: ${{ steps.build.outputs.digest }}