deps(ci): bump actions/attest-build-provenance from 3.1.0 to 3.2.0 (#435)

Bumps [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance) from 3.1.0 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](00014ed6ed...96278af6ca)

---
updated-dependencies:
- dependency-name: actions/attest-build-provenance
  dependency-version: 3.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/build.yml

@@ -115,7 +115,7 @@ jobs:
           retention-days: 1
 
       - name: Attest digest (per-arch)
-        uses: actions/attest-build-provenance@00014ed6ed5efc5b1ab7f7f34a39eb55d41aa4f8 #v3.1.0
+        uses: actions/attest-build-provenance@96278af6caaf10aea03fd8d33a09a777ca52d62f #v3.2.0
         with:
           subject-name: digests-${{ matrix.arch }}
           subject-digest: sha256:${{ steps.upload_digests.outputs.artifact-digest }}
@@ -196,14 +196,14 @@ jobs:
           echo "digest=$DIGEST" >> $GITHUB_OUTPUT
 
       - name: Attest docker build (DockerHub)
-        uses: actions/attest-build-provenance@00014ed6ed5efc5b1ab7f7f34a39eb55d41aa4f8 #v3.1.0
+        uses: actions/attest-build-provenance@96278af6caaf10aea03fd8d33a09a777ca52d62f #v3.2.0
         with:
           subject-name: index.docker.io/${{ github.repository }}
           subject-digest: ${{ steps.docker_build.outputs.digest }}
           push-to-registry: true
 
       - name: Attest docker build (GitHub Container Registry)
-        uses: actions/attest-build-provenance@00014ed6ed5efc5b1ab7f7f34a39eb55d41aa4f8 #v3.1.0
+        uses: actions/attest-build-provenance@96278af6caaf10aea03fd8d33a09a777ca52d62f #v3.2.0
         with:
           subject-name: ghcr.io/${{ github.repository }}
           subject-digest: ${{ steps.docker_build.outputs.digest }}