Bump minimist, mkdirp, gonzales-pe, handlebars and karma#18

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dependabot/npm_and_yarn/minimist-and-mkdirp-and-gonzales-pe-and-handlebars-and-karma-1.2.8Code-Institute-Org/edx-ironwood:dependabot/npm_and_yarn/minimist-and-mkdirp-and-gonzales-pe-and-handlebars-and-karma-1.2.8Copy head branch name to clipboard