Fix use of importlib.metadata.entry_points in python 3.9

entry_points() did not take arguments until python 3.10

Bug: T381734
Change-Id: Ib01641ffa83be1e243615903eca95d872633ff2b

pywikibot/scripts/wrapper.py

@@ -421,7 +421,18 @@ def test_paths(paths, root: Path):
 
         from pywikibot.i18n import set_messages_package
 
-        for ep in entry_points(name='scriptspath', group='pywikibot'):
+        if sys.version_info < (3, 10):
+            entry_points_items = [
+                ep for ep in entry_points().get('pywikibot', [])
+                if ep.name == 'scriptspath'
+            ]
+        else:
+            entry_points_items = entry_points(
+                name='scriptspath',
+                group='pywikibot',
+            )
+
+        for ep in entry_points_items:
             path = ep.load()
             found = test_paths([''], path)
             if found: