[Snyk] Upgrade proj4 from 2.17.0 to 2.19.4#529

ahnan wants to merge 1 commit intomasterSuperMap/iClient-JavaScript:masterfrom

snyk-upgrade-128ea685dbcdfa37c4e9ff8f40290accSuperMap/iClient-JavaScript:snyk-upgrade-128ea685dbcdfa37c4e9ff8f40290accCopy head branch name to clipboard