[Snyk] Upgrade leaflet from 1.7.1 to 1.9.4#33

anmipa wants to merge 1 commit intomasterCity-of-Helsinki/tpr-ilmoituslomake-ui:masterfrom

snyk-upgrade-c3bdee316122a548da3b9f1fb56d2d6cCity-of-Helsinki/tpr-ilmoituslomake-ui:snyk-upgrade-c3bdee316122a548da3b9f1fb56d2d6cCopy head branch name to clipboard