Quick script to force update Google Chrome
curl -L https://dl.google.com/dl/chrome/mac/universal/stable/gcem/GoogleChrome.pkg -o /tmp/GoogleChrome.pkg && installer -pkg /tmp/GoogleChrome.pkg -target / -verbose
Link:
https://community.jamf.com/t5/jamf-pro/google-chrome-force-update-patch/m-p/211412