refactor: add utf-8 encoding to file open in debug_server_parser

Author: gnikit

fortls/__init__.py

@@ -539,7 +539,7 @@ def locate_config(root: str) -> str | None:
         config_exists = os.path.isfile(config_path)
         if config_exists:
             try:
-                with open(config_path) as fhandle:
+                with open(config_path, encoding="utf-8") as fhandle:
                     config_dict = json.load(fhandle)
                     pp_suffixes = config_dict.get("pp_suffixes", None)
                     pp_defs = config_dict.get("pp_defs", {})