Merge branch 'docs-update-supporting-k8s-version-to-1.30' into 'master'

Update supporting K8s version to 1.30

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/155819



Merged-by: Phillip Wells <pwells@gitlab.com>
Approved-by: Viktor Nagy (GitLab) <vnagy@gitlab.com>
Approved-by: Phillip Wells <pwells@gitlab.com>
Co-authored-by: Taka Nishida <tnishida@gitlab.com>

doc/user/clusters/agent/index.md

@@ -57,9 +57,9 @@ GitLab in a Kubernetes cluster, you might need a different version of Kubernetes
 You can upgrade your
 Kubernetes version to a supported version at any time:
 
+- 1.30 (support ends when GitLab version 18.2 is released or when 1.33 becomes supported)
 - 1.29 (support ends when GitLab version 17.10 is released or when 1.32 becomes supported)
 - 1.28 (support ends when GitLab version 17.5 is released or when 1.31 becomes supported)
-- 1.27 (support ends when GitLab version 17.2 is released or when 1.30 becomes supported)
 
 GitLab aims to support a new minor Kubernetes version three months after its initial release. GitLab supports at least three production-ready Kubernetes minor
 versions at any given time.