Update deploy-manage/remote-clusters/remote-clusters-api-key.md

Co-authored-by: shainaraskas <[email protected]>

Author: jfreden

deploy-manage/remote-clusters/remote-clusters-api-key.md

@@ -431,7 +431,7 @@ Note that you only need to create this user on the local cluster.
 ## Remote cluster strong verification [remote-cluster-strong-verification]
 ```{applies_to}
 deployment:
-  self: preview 9.3
+  stack: preview 9.3
 ```
 
 Cross-cluster API keys can be configured with strong verification to provide an additional layer of security. To enable this feature, a