Prepare next release after 4.6.2

Author: mrbean-bremen

CHANGES.md

@@ -3,6 +3,9 @@ The released versions correspond to PyPi releases.
 
 ## Unreleased
 
+## [Version 4.6.2](https://pypi.python.org/pypi/pyfakefs/4.6.2) (2022-07-14)
+Patch release that fixes an error in the previous patch.
+
 ### Fixes
 * fixed support for `opener` introduced in previous patch release 
   (see [#689](../../issues/689))