Ensure log directory is created if missing

Author: TheForgotten69

games/game_baldursgate3.py

@@ -179,6 +179,7 @@ def _base_dlls(self) -> set[str]:
     def _on_finished_run(self, exec_path: str, exit_code: int):
         if "bin/bg3" not in exec_path:
             return
+        self.utils.log_dir.mkdir(parents=True, exist_ok=True)
         if self.utils.log_diff:
             for x in difflib.unified_diff(
                 open(self.utils.modsettings_backup).readlines(),