Update docs for ConfigurableFSGroupPolicy

Author: gnufied

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

@@ -222,6 +222,7 @@ different Kubernetes components.
 | `BoundServiceAccountTokenVolume` | `false` | Alpha | 1.13 | 1.20 |
 | `BoundServiceAccountTokenVolume` | `true` | Beta | 1.21 | 1.21 |
 | `BoundServiceAccountTokenVolume` | `true` | GA | 1.22 | - |
+| `ConfigurableFSGroupPolicy` | `true` | GA | 1.23 | |
 | `CRIContainerLogRotation` | `false` | Alpha | 1.10 | 1.10 |
 | `CRIContainerLogRotation` | `true` | Beta | 1.11 | 1.20 |
 | `CRIContainerLogRotation` | `true` | GA | 1.21 | - |

content/en/docs/tasks/configure-pod-container/security-context.md

@@ -149,7 +149,7 @@ exit
 
 ## Configure volume permission and ownership change policy for Pods
 
-{{< feature-state for_k8s_version="v1.20" state="beta" >}}
+{{< feature-state for_k8s_version="v1.23" state="stable" >}}
 
 By default, Kubernetes recursively changes ownership and permissions for the contents of each
 volume to match the `fsGroup` specified in a Pod's `securityContext` when that volume is