ci: Add metadata tags for Docker image publishing

.github/workflows/publish-docker.yml

@@ -17,9 +17,25 @@ jobs:
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=sha
+            type=ref,event=branch
+            type=ref,event=pr
+            type=ref,event=tag
+            type=semver,pattern={{version}}
+            type=raw,value={{date 'YYYYMMDD'}}
+          
       - name: Build and push
         uses: docker/build-push-action@v3
         with:
           context: .
           push: true
-          tags: excalidraw/excalidraw:latest
+          tags: |
+            ${{ steps.meta.outputs.tags }}
+            excalidraw/excalidraw:latest