Merge pull request #28902 from ibm-contribs/fix_allow_all

Automatic merge from submit-queue

Fix the allow-all example NetworkPolicy

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This is a bug fix, no release note required.

Fixes #28795

docs/proposals/network-policy.md

@@ -326,6 +326,8 @@ metadata:
   name: allow-all
 spec:
   podSelector:
+  ingress:
+  - {}
 ```
 
 ## References