Update actions/attest-build-provenance action to v2 (#4172)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/main.yml

@@ -91,7 +91,7 @@ jobs:
           publish -x check \
           prepareGitHubAttestation
     - name: Generate build provenance attestations
-      uses: actions/attest-build-provenance@ef244123eb79f2f7a7e75d99086184180e6d0018 # v1.4.4
+      uses: actions/attest-build-provenance@619dbb2e03e0189af0c55118e7d3c5e129e99726 # v2.0.0
       with:
         subject-path: documentation/build/attestation/*.jar