refactor: migrate CI pipeline to use semantic version tags for actions

- Replace pinned SHA action versions with maintainable semantic version tags
- Add QEMU setup for multi-arch builds
- Simplify conditionals and improve readability
- Clean up tag strategy with metadata action

.gitea/workflows/docker-build.yaml

@@ -1,10 +1,10 @@
 name: Docker Build and Push
 
 on:
-  pull_request:
-    branches: [main]
   push:
     branches: [main]
+  pull_request:
+    branches: [main]
   schedule:
     - cron: '0 0 * * *'
 
@@ -13,34 +13,36 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Docker metadata
         id: meta
-        uses: docker/metadata-action@80c7e94dd9b9319bd5eb7a0e0fe9291e23a2a2e9 # v6
+        uses: docker/metadata-action@v5
         with:
           images: jcabillot/opencode-dispatch
           tags: |
-            #type=ref,event=branch
-            #type=ref,event=pr
-            #type=sha
+            type=ref,event=branch
+            type=ref,event=pr
+            type=sha
             type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
 
       - name: Build and push
-        uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7
+        uses: docker/build-push-action@v6
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          pull: true