Bump json5, loader-utils and @vue/cli-service#10

dependabot[bot] wants to merge 1 commit intomasterrabbitwerks/flexbox-util-playground:masterfrom

dependabot/npm_and_yarn/json5-and-loader-utils-and-vue/cli-service-2.2.3rabbitwerks/flexbox-util-playground:dependabot/npm_and_yarn/json5-and-loader-utils-and-vue/cli-service-2.2.3Copy head branch name to clipboard