[ci] Fix bloat-check after ghapi update to 1.0.4

per_page argument was passed as a positional argument to
list_artifacts_for_repo action, which stopped working after
a new argument has been added to the action in ghapi 1.0.4.

scripts/tools/memory/memdf/util/github.py

@@ -130,7 +130,7 @@ def get_artifacts(self, page_limit: int = -1, per_page: int = -1):
             page = 0
             for i in ghapi.all.paged(
                     self.ghapi.actions.list_artifacts_for_repo,
-                    per_page):
+                    per_page=per_page):
                 if not i.artifacts:
                     break
                 for a in i.artifacts: