[DOCS] Fix broken link to allowlist details (elastic#134612) (elastic#134620)

(cherry picked from commit 962d241)

Author: lcawl

docs/management/connectors/action-types/email.asciidoc

@@ -101,7 +101,7 @@ For other email servers, you can check the list of well-known services that Node
 [[elasticcloud]]
 ==== Sending email from Elastic Cloud
 
-IMPORTANT: These instructions require you to link:{cloud}/ec-watcher.html#ec-watcher-whitelist[whitelist] the email addresses that notifications get sent first.
+IMPORTANT: These instructions require you to link:{cloud}/ec-watcher.html#ec-watcher-allowlist[allowlist] the email addresses that notifications get sent.
 
 Use the following connector settings to send email from Elastic Cloud: