[Snyk] Upgrade firebase-tools from 3.18.4 to 3.19.3#4

snyk-bot wants to merge 1 commit intomainjeremylorino/firebase-functions-unittest-cd:mainfrom

snyk-upgrade-418d3682e84662cd8c6923b89519ddeejeremylorino/firebase-functions-unittest-cd:snyk-upgrade-418d3682e84662cd8c6923b89519ddeeCopy head branch name to clipboard