update GHA workflow

Author: rpardini

.github/workflows/master-latest.yml

@@ -10,36 +10,22 @@ jobs:
     steps:
 
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
+        uses: docker/setup-qemu-action@v2
 
       # We use buildx instead of regular build so we can take advantage of Docker layer cache via GithubActions' 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@v2
 
       - name: Docker Login to GitHub Container Registry
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2
         with:
           registry: ghcr.io
-          username: ${{ github.repository_owner }} # github username or org
-          password: ${{ secrets.GITHUB_TOKEN }}    # github actions builtin token. repo has to have pkg access.
-
-      - name: Prepare
-        id: prep
-        run: |
-          echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+          username: ${{ github.repository_owner }} # GitHub username or org
+          password: ${{ secrets.GITHUB_TOKEN }}    # GitHub actions builtin token. repo has to have pkg access.
 
       - name: Build and push
         id: docker_build
@@ -48,16 +34,16 @@ jobs:
           context: .
           file: ./Dockerfile
           platforms: linux/amd64,linux/arm64
+          pull: true
           push: true
           tags: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest,ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.sha }}
           labels: |
             org.opencontainers.image.title=${{ github.event.repository.name }}
             org.opencontainers.image.description=${{ github.event.repository.description }}
             org.opencontainers.image.url=${{ github.event.repository.html_url }}
             org.opencontainers.image.source=${{ github.event.repository.clone_url }}
-            org.opencontainers.image.created=${{ steps.prep.outputs.created }}
             org.opencontainers.image.revision=${{ github.sha }}
             org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}
-          cache-from: type=local,src=/tmp/.buildx-cache/release
-          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache/release
+          cache-from: type=gha # all-automatic GitHub Actions caching
+          cache-to: type=gha,mode=max