[Snyk] Security upgrade mongoose from 4.13.21 to 6.0.4#16

snyk-bot wants to merge 1 commit intomasterRayeesMir/Notification-System:masterfrom

snyk-fix-5bd93b2aa4f08adf73e3f541aacb6008RayeesMir/Notification-System:snyk-fix-5bd93b2aa4f08adf73e3f541aacb6008Copy head branch name to clipboard