Fix package dir in settings (#1387)

Copy of https://github.com/IBM/unitxt/pull/1386/files but in a branch

Signed-off-by: Yoav Katz <[email protected]>

Author: yoavkatz

src/unitxt/settings_utils.py

@@ -161,8 +161,8 @@ def __getattr__(self, key):
     constants.metric_file = os.path.join(os.path.dirname(__file__), "metric.py")
     constants.local_catalog_path = os.path.join(os.path.dirname(__file__), "catalog")
     unitxt_pkg = importlib.util.find_spec("unitxt")
-    constants.package_dir = os.path.dirname(unitxt_pkg.origin)
     if unitxt_pkg and unitxt_pkg.origin:
+        constants.package_dir = os.path.dirname(unitxt_pkg.origin)
         constants.default_catalog_path = os.path.join(constants.package_dir, "catalog")
     else:
         constants.default_catalog_path = constants.local_catalog_path