[WAF] Update custom block response (#23719)

Author: pedrosousa

src/content/docs/waf/custom-rules/create-dashboard.mdx

@@ -58,7 +58,7 @@ import { Render, Tabs, TabItem } from "~/components";
 ## Configure a custom response for blocked requests
 
 :::note
-This feature is only available on paid plans.
+This feature is only available on Pro plans and above.
 :::
 
 <Render

src/content/docs/waf/rate-limiting-rules/create-zone-dashboard.mdx

@@ -82,7 +82,7 @@ import { Render, Tabs, TabItem } from "~/components";
 ## Configure a custom response for blocked requests
 
 :::note
-This feature is only available on paid plans.
+This feature is only available on Pro plans and above.
 :::
 
 <Render