ci: simplify, update, and use docker layer caching

.github/workflows/docker.yml

@@ -1,5 +1,4 @@
 name: Build and Push Docker Image
-
 on:
   push:
     branches:
@@ -8,26 +7,19 @@ on:
 jobs:
   docker:
     runs-on: ubuntu-latest
-
     steps:
-    - name: Checkout code
-      uses: actions/checkout@v2
-
-    - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v1
-
-    - name: Login to GitHub Container Registry
-      uses: docker/login-action@v1
-      with:
-        registry: ghcr.io
-        username: ${{ github.repository_owner }}
-        password: ${{ secrets.GITHUB_TOKEN }}
-
-    - name: Build and Push Docker Image
-      uses: docker/build-push-action@v2
-      with:
-        context: .
-        file: ./dockerfile
-        platforms: linux/amd64
-        push: true
-        tags: ghcr.io/${{ github.repository }}:latest
+      - uses: actions/checkout@v4
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/setup-buildx-action@v3
+      - name: Build and Push Docker Image
+        uses: docker/build-push-action@v5
+        with:
+          platforms: linux/amd64
+          push: true
+          tags: ghcr.io/${{ github.repository }}:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max