chore: update actions/cache action to v5.0.3

Author: renovate-bot

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

@@ -142,7 +142,7 @@ jobs:
           cat $GITHUB_OUTPUT
 
       - name: Setup buildkit mount cache
-        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         if: steps.vars.outputs.cache-paths
         with:
           path: |