[Token notifications] Clarify owners are also notified of PAT expiry

doc/security/token_overview.md

@@ -59,7 +59,7 @@ You can use the [project access tokens API](../api/project_access_tokens.md) to
 programmatically take action, such as
 [rotating a project access token](../api/project_access_tokens.md#rotate-a-project-access-token).
 
-All project maintainers receive an email when project access tokens are 7 days or less from expiration.
+Project owners and maintainers receive an email when project access tokens are 7 days or less from expiration.
 
 ## Group access tokens