Update Consul K8s Upgrade Doc Updates (#17921)

Updating upgrade procedures to encompass expected errors during upgrade process from v1.13.x to v1.14.x.

website/content/docs/k8s/upgrade/index.mdx

@@ -240,7 +240,7 @@ Note that you must remove the token manually after completing the migration.
   kubectl patch deploy $INJECTOR_DEPLOYMENT --type='json' -p='[{"op": "remove", "path": "/spec/template/spec/containers/0/lifecycle"}]'
   ```
 
-1. Follow our [recommended procedures to upgrade servers](#upgrade-consul-servers) on Kubernetes deployments to upgrade Helm values for the new version of Consul.
+1. Follow our [recommended procedures to upgrade servers](#upgrade-consul-servers) on Kubernetes deployments to upgrade Helm values for the new version of Consul. The latest version of consul-k8s components may be in a CrashLoopBackoff state during the performance of the server upgrade from versions <1.14.x until all Consul servers are on versions >=1.14.x. Components in CrashLoopBackoff will not negatively affect the cluster because older versioned components will still be operating. Once all servers have been fully upgraded, the latest consul-k8s components will automatically restore from CrashLoopBackoff and older component versions will be spun down.
 
 1. Run `kubectl rollout restart` to restart your service mesh applications. Restarting service mesh application causes Kubernetes to re-inject them with the webhook for dataplanes.