manager: added asyncio main loop to avoid Lock error

Author: alesmrazek

python/knot_resolver/manager/__main__.py

@@ -1,4 +1,5 @@
 from knot_resolver.manager.main import main
+from knot_resolver.utils.compat import asyncio
 
 if __name__ == "__main__":
-    main()
+    asyncio.run(main())

python/knot_resolver/manager/main.py

@@ -35,7 +35,7 @@ def parse_args() -> argparse.Namespace:
     return parser.parse_args()
 
 
-def main() -> NoReturn:
+async def main() -> NoReturn:
     # initial logging is to memory until we read the config
     logger_startup()
 
@@ -48,5 +48,5 @@ def main() -> NoReturn:
     else:
         config_path = CONFIG_FILE
 
-    exit_code = compat.asyncio.run(start_server(config=config_path))
+    exit_code = await start_server(config=config_path)
     sys.exit(exit_code)