[Snyk] Security upgrade mongoose from 4.13.20 to 5.3.9#16

snyk-bot wants to merge 1 commit intomasterAdminDevelopment/cla-assistant:masterfrom

snyk-fix-f060d9909d45f2ad301f8661a7f77c34AdminDevelopment/cla-assistant:snyk-fix-f060d9909d45f2ad301f8661a7f77c34Copy head branch name to clipboard