Update actions/attest-build-provenance action to v1.4.4

Author: renovate[bot]

.github/workflows/main.yml

@@ -92,7 +92,7 @@ jobs:
           publish -x check \
           prepareGitHubAttestation
     - name: Generate build provenance attestations
-      uses: actions/attest-build-provenance@1c608d11d69870c2092266b3f9a6f3abbf17002c # v1.4.3
+      uses: actions/attest-build-provenance@ef244123eb79f2f7a7e75d99086184180e6d0018 # v1.4.4
       with:
         subject-path: documentation/build/attestation/*.jar