ci matrix strategy update

.gitea/workflows/ci.yaml

@@ -25,10 +25,15 @@ jobs:
           echo "Version: 1.0.${{ gitea.run_number }}" >> $GITHUB_STEP_SUMMARY
           echo "Event: ${{ gitea.event_name }}" >> $GITHUB_STEP_SUMMARY
 
-  # CPU image: Multi-arch (amd64 + arm64)
+  # CPU image: Matrix build for amd64 and arm64 (each pushes as soon as done)
   build_cpu:
     runs-on: ubuntu-latest
     needs: essential
+    strategy:
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm64
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -46,16 +51,25 @@ jobs:
           username: username
           password: ${{ secrets.UNIR_REGISTRY_TOKEN }}
 
-      - name: Build and push CPU image (multi-arch)
+      - name: Get arch suffix
+        id: arch
+        run: |
+          if [ "${{ matrix.platform }}" = "linux/amd64" ]; then
+            echo "suffix=amd64" >> $GITHUB_OUTPUT
+          else
+            echo "suffix=arm64" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Build and push CPU image (${{ matrix.platform }})
         uses: docker/build-push-action@v5
         with:
           context: src/paddle_ocr
           file: src/paddle_ocr/Dockerfile.cpu
-          platforms: linux/amd64,linux/arm64
+          platforms: ${{ matrix.platform }}
           push: true
           tags: |
-            ${{ needs.essential.outputs.image_cpu }}:${{ needs.essential.outputs.Version }}
-            ${{ needs.essential.outputs.image_cpu }}:latest
+            ${{ needs.essential.outputs.image_cpu }}:${{ needs.essential.outputs.Version }}-${{ steps.arch.outputs.suffix }}
+            ${{ needs.essential.outputs.image_cpu }}:${{ steps.arch.outputs.suffix }}
 
   # GPU image: x86_64 only (PaddlePaddle GPU doesn't support ARM64)
   build_gpu: