chore(deps): bump actions/attest-build-provenance from 2.4.0 to 3.0.0 (#5238)

Bumps [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance) from 2.4.0 to 3.0.0.
- [Release notes](https://github.com/actions/attest-build-provenance/releases)
- [Changelog](https://github.com/actions/attest-build-provenance/blob/main/RELEASE.md)
- [Commits](https://github.com/actions/attest-build-provenance/compare/e8998f949152b193b063cb0ec769d69d929409be...977bb373ede98d70efdf65b84cb5f73e068dcc2a)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Moritz Johner <moolen@users.noreply.github.com>

.github/workflows/helm.yml

@@ -178,7 +178,7 @@ jobs:
 
       - name: Generate provenance attestation and push to OCI registry
         if: steps.push_chart.outputs.push_status == 'pushed'
-        uses: actions/attest-build-provenance@e8998f949152b193b063cb0ec769d69d929409be # v2.4.0
+        uses: actions/attest-build-provenance@977bb373ede98d70efdf65b84cb5f73e068dcc2a # v3.0.0
         with:
           push-to-registry: true
           subject-name: ${{ steps.push_chart.outputs.registry }}/${{ steps.push_chart.outputs.chart_name }}