style: Fix pyink formatting in adk_web_server.py

Author: timof1308

src/google/adk/cli/adk_web_server.py

@@ -951,9 +951,7 @@ async def version() -> dict[str, str]:
       return {
           "version": __version__,
           "language": "python",
-          "language_version": (
-              f"{sys.version_info.major}.{sys.version_info.minor}.{sys.version_info.micro}"
-          ),
+          "language_version": f"{sys.version_info.major}.{sys.version_info.minor}.{sys.version_info.micro}",
       }
 
     @app.get("/list-apps")