feat: Implement versioned Docker tagging

This change updates the GitHub Actions workflow to implement a versioned Docker tagging strategy, as requested.

- The workflow now reads the version from `version.json`.
- It generates semantic version tags (e.g., `v4.5.0`, `v4.5`, `v4`) for the Docker image, in addition to the `latest` tag.
- This makes the image tagging consistent with the practices of `linuxserver/grocy`.

.github/workflows/docker-publish.yml

@@ -18,11 +18,20 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
+      - name: Get version
+        id: version
+        run: echo "tag=$(jq -r .Version < version.json)" >> $GITHUB_OUTPUT
+
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v4
         with:
           images: nishizhen/anticlockwisegrocy
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=semver,pattern={{version}},value=v${{ steps.version.outputs.tag }}
+            type=semver,pattern={{major}}.{{minor}},value=v${{ steps.version.outputs.tag }}
+            type=semver,pattern={{major}},value=v${{ steps.version.outputs.tag }}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v4