gha: test: bump actions, drop cache, fix tested image versions/references

Author: rpardini

.github/workflows/test.yaml

@@ -21,24 +21,15 @@ jobs:
           echo "Ethernet IPv4 is: ${{ steps.ip.outputs.ETHER }}"
 
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       # We use buildx instead of regular build so we can take advantage of Docker layer cache via Github Actions' cache
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v1
-
-      # Setup the Github Actions cache.
-      - name: Cache Docker layers
-        uses: actions/cache@v2
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildxarch-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-buildxarch-
+        uses: docker/setup-buildx-action@v3
 
       - name: Build amd64 release image locally to Docker
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v6
         with:
           build-args: |
             DEBUG_BUILD=0
@@ -50,8 +41,6 @@ jobs:
           tags: sanity-check/docker-registry-proxy:latest
           push: false
           load: true
-          cache-from: type=local,src=/tmp/.buildx-cache/release
-          # this only reads from the cache
 
       - name: Start proxy instance in docker (ENABLE_MANIFEST_CACHE=false)
         run: |
@@ -68,7 +57,7 @@ jobs:
           docker logs docker_registry_proxy > initial_logs.txt
 
       - name: Upload artifact initial_logs
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: initial_logs
           path: initial_logs.txt
@@ -143,15 +132,15 @@ jobs:
       - name: First round of pulls
         timeout-minutes: 2
         run: |
-          docker pull alpine:3.6
-          docker pull k8s.gcr.io/pause:3.3
+          docker pull alpine:3.20
+          docker pull registry.k8s.io/pause:3.6
 
       - name: Get the cold cache logs for the container into a file
         run: |
           docker logs docker_registry_proxy > cold_cache.txt
 
       - name: Upload artifact cold_cache
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: cold_cache
           path: cold_cache.txt
@@ -168,15 +157,15 @@ jobs:
       - name: Second round of pulls
         timeout-minutes: 2
         run: |
-          docker pull alpine:3.6
-          docker pull k8s.gcr.io/pause:3.3
+          docker pull alpine:3.20
+          docker pull registry.k8s.io/pause:3.6
 
       - name: Get the warm cache docker logs for the container into a file
         run: |
           docker logs docker_registry_proxy > warm_cache.txt
 
       - name: Upload artifact warm_cache
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: warm_cache
           path: warm_cache.txt