Fix: Grant IAM Service Account User permissions for Cloud Functions deployment

Author: kovendhan5

README.md

@@ -2,7 +2,7 @@
 
 A production-ready serverless contact form API built on Google Cloud Platform that handles form submissions, stores data securely, and sends email notifications.
 
-**🚀 Status: Service Account Fixed - Deploying Now**
+**🚀 Status: IAM Permissions Fixed - Final Deployment**
 
 ## 🌟 Features