Change NEWS file

I rechecked and get that `unittest.mock.patch.dict` is not involved. Also deleted a trailing comma

Author: Red4Ru

Misc/NEWS.d/next/Library/2024-11-10-18-14-51.gh-issue-104745.zAa5Ke.rst

@@ -1,3 +1,3 @@
-Limit starting a patcher (from :func:`unittest.mock.patch`,
-:func:`unittest.mock.patch.object` or :func:`unittest.mock.patch.dict`) more than
-once without stopping it.
+Limit starting a patcher (from :func:`unittest.mock.patch` or
+:func:`unittest.mock.patch.object`) more than
+once without stopping it