chore: update actions/upload-artifact action to v7

Author: renovate-bot

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

@@ -179,7 +179,7 @@ jobs:
           touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
       - name: Upload digest as an artifact
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
           name: digests-${{ inputs.title }}-${{ steps.vars.outputs.platform-pair }}
           path: ${{ runner.temp }}/digests/*