chore: update actions/download-artifact action to v4.2.1

Author: renovate-bot

.github/workflows/docker-parallel-multiarch-build.yml

@@ -202,7 +202,7 @@ jobs:
       - vars
     steps:
       - name: Download digests
-        uses: actions/download-artifact@b14cf4c92620c250e1c074ab0a5800e37df86765 # v4.2.0
+        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
         with:
           path: ${{ runner.temp }}/digests
           pattern: digests-${{ inputs.title }}-*