[Bugfix][Urgent] AQUA get configuration bugfix (#1063)

Author: kumar-shivam-ranjan

ads/aqua/app.py

@@ -333,7 +333,7 @@ def get_config(
             config_path = os.path.join(artifact_path.rstrip("/"), config_folder)
             if not is_path_exists(config_path):
                 config_path = f"{artifact_path.rstrip('/')}/"
-        config_file_path = f"{config_path}{config_file_name}"
+        config_file_path = os.path.join(config_path, config_file_name)
         if is_path_exists(config_file_path):
             try:
                 config = load_config(