[Snyk] Security upgrade cssnano from 4.0.0 to 5.0.0#7

Open

snyk-bot wants to merge 1 commit intomasterfrom

snyk-fix-8e2b88e8b8ea3047369014fb37088763

Commits on May 25, 2021

fix: package.json & package-lock.json to reduce vulnerabilities
snyk-bot
committed