chore(deps): update actions/attest-build-provenance action to v2.4.0

Author: renovate[bot]

.github/workflows/ci-alpine-build.yml

@@ -172,7 +172,7 @@ jobs:
         run: docker exec -u gh:gh -w /home/gh/${qbt_build_dir}/completed ${container_name} mv -f qbittorrent-nox ${{ matrix.qbt_cross_name }}-${{ matrix.qbt_qt_version_name }}qbittorrent-nox
 
       - name: Generate artifact attestation  ${{ inputs.distinct_id }}
-        uses: actions/attest-build-provenance@e8998f949152b193b063cb0ec769d69d929409be # v2
+        uses: actions/attest-build-provenance@e8998f949152b193b063cb0ec769d69d929409be # v2.4.0
         with:
           subject-path: "${{ env.qbt_build_dir }}/completed/${{ matrix.qbt_cross_name }}-${{ matrix.qbt_qt_version_name }}qbittorrent-nox"