Bump browserslist from 4.16.3 to 4.21.4#117

pbrudnick merged 2 commits intomasterfiqus/coophub:masterfrom

dependabot/npm_and_yarn/browserslist-4.21.4fiqus/coophub:dependabot/npm_and_yarn/browserslist-4.21.4Copy head branch name to clipboard