Merge pull request kubernetes#3330 from tallclair/psa-ga

PSA GA KEP compliance

Author: k8s-ci-robot

keps/sig-auth/2579-psp-replacement/README.md

@@ -557,6 +557,10 @@ publish the following tools:
 
 ### Test Plan
 
+[X] I/we understand the owners of the involved components may require updates to
+existing tests to make this code solid enough prior to committing the changes necessary
+to implement this enhancement.
+
 ##### Prerequisite testing updates
 
 None.