Bump loader-utils, html-webpack-plugin and source-map-loader#6

dependabot[bot] wants to merge 1 commit intomainokfde/karte.volksentscheid-transparenz.de:mainfrom

dependabot/npm_and_yarn/loader-utils-and-loader-utils-and-html-webpack-plugin-and-source-map-loader-1.4.2okfde/karte.volksentscheid-transparenz.de:dependabot/npm_and_yarn/loader-utils-and-loader-utils-and-html-webpack-plugin-and-source-map-loader-1.4.2Copy head branch name to clipboard