node: memmgr: docs: Kubelet Memory Manager GA graduation

Docs update for the Kubelet Memory Manager GA graduation
Issue: https://github.com/kubernetes/enhancements/issues/1769

Signed-off-by: Francesco Romani <fromani@redhat.com>

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

@@ -13,6 +13,10 @@ stages:
   - stage: beta
     defaultValue: true
     fromVersion: "1.22"
+    toVersion: "1.31"
+  - stage: stable
+    defaultValue: true
+    fromVersion: "1.32"
 ---
 Allows setting memory affinity for a container based on
 NUMA topology.

content/en/docs/reference/command-line-tools-reference/kubelet.md

@@ -426,7 +426,6 @@ LoggingBetaOptions=true|false (BETA - default=true)<br/>
 MatchLabelKeysInPodAffinity=true|false (ALPHA - default=false)<br/>
 MatchLabelKeysInPodTopologySpread=true|false (BETA - default=true)<br/>
 MaxUnavailableStatefulSet=true|false (ALPHA - default=false)<br/>
-MemoryManager=true|false (BETA - default=true)<br/>
 MemoryQoS=true|false (ALPHA - default=false)<br/>
 MultiCIDRServiceAllocator=true|false (ALPHA - default=false)<br/>
 MutatingAdmissionPolicy=true|false (ALPHA - default=false)<br/>

content/en/docs/tasks/administer-cluster/memory-manager.md

@@ -6,7 +6,7 @@ reviewers:
 - derekwaynecarr
 
 content_type: task
-min-kubernetes-server-version: v1.21
+min-kubernetes-server-version: v1.32
 weight: 410
 ---
 
@@ -217,13 +217,17 @@ display an error.
 Here is an example of a correct configuration:
 
 ```shell
---feature-gates=MemoryManager=true
 --kube-reserved=cpu=4,memory=4Gi
 --system-reserved=cpu=1,memory=1Gi
 --memory-manager-policy=Static
 --reserved-memory '0:memory=3Gi;1:memory=2148Mi'
 ```
 
+Prior to Kubernetes 1.32, you also need to add
+```shell
+--feature-gates=MemoryManager=true
+```
+
 Let us validate the configuration above:
 
 1. `kube-reserved + system-reserved + eviction-hard(default) = reserved-memory(0) + reserved-memory(1)`