Remove 'v' from Docker tag name

Author: zhengyao-lin

.github/workflows/docker.yml

@@ -43,7 +43,7 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
-            type=ref,event=tag
+            type=semver,pattern={{version}}
             type=sha,format=short
 
       - name: Set up Docker Buildx