Merge pull request #4484 from DeCohen/post-validation-to-app-catalog-update

update the sentence to say approximately not typically

Author: aditisrivastava07

CloudAppSecurityDocs/submit-app-catalog-update-request.md

@@ -37,7 +37,7 @@ We thoroughly validate all catalog update requests to ensure accuracy and releva
 - The app must qualify as a SaaS product.
 - The request must include complete and verifiable information.
 
-We typically update the catalog within three weeks of receiving your request.
+After we validate and accept your request, the standard turnaround time for a catalog update is approximately three weeks.
 
 ## All other requests