provide additional debug output

- in case of upcoming failure, this provides a clue in which function the
  failure is to find.

mpsd-software-environment.py

@@ -585,6 +585,7 @@ def get_release_info(mpsd_release: str, script_dir: Path) -> Tuple[str, str, Lis
     # Get the info for release
     release_base_dir = script_dir / mpsd_release
     if not os.path.exists(release_base_dir):
+        logging.debug(f"get_release_info({mpsd_release=}, {script_dir=}")
         raise FileNotFoundError(
             "Release directory does not exist. Run create_dir_structure() first."
         )