Simplify glob

Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>

Tests/check_release_notes.py

@@ -1,6 +1,6 @@
 import sys
 from pathlib import Path
 
-for rst in Path("docs/releasenotes/").rglob("[1-9]*.rst"):
+for rst in Path("docs/releasenotes").glob("[1-9]*.rst"):
     if "TODO" in open(rst).read():
         sys.exit(f"Error: remove TODO from {rst}")