experiment with caching of docker images

Author: transistive

.github/workflows/integration-test-cluster-neo4j-5.yml

@@ -17,6 +17,24 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Restore Neo4j Image Cache if it exists
+        id: cache-neo4j-neo4j
+        uses: actions/cache@v4
+        with:
+          path: ci/cache/docker/neo4j
+          key: cache-docker-neo4j-5-enterprise
+
+      - name: Update Neo4j Image Cache if cache miss
+        if: steps.cache-docker-neo4j.outputs.cache-hit != 'true'
+        run: |
+          docker pull neo4j:5-enterprise
+          mkdir -p ci/cache/docker/neo4j
+          docker image save neo4j:5-enterprise --output ./ci/cache/docker/neo4j/neo4j-5-enterprise.tar
+
+      - name: Use Neo4j Image Cache if cache hit
+        if: steps.cache-docker-neo4j.outputs.cache-hit == 'true'
+        run: docker image load --input ./ci/cache/docker/neo4j/neo4j-5-enterprise.tar
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2