fix error in noamd: TypeError: entry_points() missing 1 required pos…

…itional argument: '_'

pynxtools/dataconverter/convert.py

@@ -43,7 +43,7 @@
         # If importlib_metadata is not present
         # we provide a dummy function just returning an empty list.
         # pylint: disable=W0613
-        def entry_points(group, _):
+        def entry_points(group):
             """Dummy function for importlib_metadata"""
             return []