Bump actions/attest-build-provenance from 2.2.0 to 3.2.0 (#28)

Bumps [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance) from 2.2.0 to 3.2.0.
- [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@520d128...96278af)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-version: 3.2.0
  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>

Author: dependabot[bot]

.github/workflows/stage-3-build.yaml

@@ -68,6 +68,6 @@ jobs:
           retention-days: 90
 
       - name: Attest build provenance
-        uses: actions/attest-build-provenance@520d128f165991a6c774bcb264f323e3d70747f4 # v2.2.0
+        uses: actions/attest-build-provenance@96278af6caaf10aea03fd8d33a09a777ca52d62f # v3.2.0
         with:
           subject-path: ${{ runner.temp }}/dist/${{ steps.version.outputs.artifact_name }}