fix regex

Author: linglp

.github/workflows/docker_build.yml

@@ -7,7 +7,7 @@ name: Create and publish a Docker image
 on:
   push:
     tags:
-      - 'v[0-9]+\.[0-9]+\.[0-9]+(?:-[a-zA-Z]+)?'
+      - 'v[0-9].[0-9].[0-9]*'
 
 env:
   REGISTRY: ghcr.io