Update cli.py

Author: BattlefieldDuck

opengsq/cli.py

@@ -47,7 +47,7 @@ def register(self, parser: argparse.ArgumentParser):
     async def run(self, args: Sequence[str]) -> str:
         # Return version if -V or --version
         if args.version:
-            return __version__
+            return 'v' + __version__
         else:
             del args.version