Update VERSION files

ci_files/variables.yml

 ---
 variables:
   GITLAB_ELASTICSEARCH_INDEXER_VERSION: v2.17.0
-  GITLAB_VERSION: v14.6.1-ee
-  GITLAB_REF_SLUG: v14.6.1-ee
-  GITLAB_ASSETS_TAG: v14.6.1-ee
+  GITLAB_VERSION: v14.6.2
+  GITLAB_REF_SLUG: v14.6.2
+  GITLAB_ASSETS_TAG: v14.6.2
   GITLAB_EXPORTER_VERSION: 11.2.0
   GITLAB_SHELL_VERSION: v13.22.1
   GITLAB_CONTAINER_REGISTRY_VERSION: v3.19.0-gitlab
-  GITALY_SERVER_VERSION: v14.6.1
+  GITALY_SERVER_VERSION: v14.6.2
   GITLAB_PAGES_VERSION: v1.49.0
   GIT_VERSION: 2.29.0
   GO_VERSION: 1.16.9