fix news entry rst

Author: gpshead

Misc/NEWS.d/next/Library/2026-03-22-23-42-22.gh-issue-146313.RtDeAd.rst

@@ -1,4 +1,4 @@
-Fix a deadlock in :class:`multiprocessing.resource_tracker.ResourceTracker`
+Fix a deadlock in :mod:`multiprocessing`'s resource tracker
 where the parent process could hang indefinitely in :func:`os.waitpid`
 during interpreter shutdown if a child created via :func:`os.fork` still
 held the resource tracker's pipe open.