MetadataPathFinder.invalidate_caches should be called from PathFinder.invalidate_caches, as that will match the behavior that would happen if MetadataPathFinder were on sys.meta_path.

Originally posted by @jaraco in #116763 (comment)

Linked PRs

• gh-116811: Ensure MetadataPathFinder.invalidate_caches is reachable when delegated through PathFinder. #116812
• [3.12] gh-116811: Ensure MetadataPathFinder.invalidate_caches is reachable when delegated through PathFinder. (GH-116812) #116864
• [3.11] gh-116811: Ensure MetadataPathFinder.invalidate_caches is reachable when delegated through PathFinder. (GH-116812) #116865