Merge pull request #46983 from jpbetz/retry-generate-name-beta

KEP-4420: Retry Generate Name: Promote to beta

Author: k8s-ci-robot

content/en/docs/reference/command-line-tools-reference/feature-gates/name-generation-retries.md

@@ -10,7 +10,10 @@ stages:
   - stage: alpha 
     defaultValue: false
     fromVersion: "1.30"
-
+    toVersion: "1.30"
+  - stage: beta
+    defaultValue: true
+    fromVersion: "1.31"
 ---
 Enables retrying of object creation when the
 {{< glossary_tooltip text="API server" term_id="kube-apiserver" >}}