Simplify version check

Author: hugovk

run_release.py

@@ -410,7 +410,7 @@ def check_cpython_repo_is_clean(db: ReleaseShelf) -> None:
 
 def check_magic_number(db: ReleaseShelf) -> None:
     release_tag = db["release"]
-    if release_tag.major == 3 and release_tag.minor <= 13:
+    if release_tag.as_tuple() < (3, 14):
         return
 
     if release_tag.is_final or release_tag.is_release_candidate: