Bump json5 and html-webpack-plugin in /sys#152

dependabot[bot] wants to merge 1 commit intomastermoonad/Moonad:masterfrom

dependabot/npm_and_yarn/sys/json5-and-json5-and-html-webpack-plugin-2.2.3moonad/Moonad:dependabot/npm_and_yarn/sys/json5-and-json5-and-html-webpack-plugin-2.2.3Copy head branch name to clipboard