Bump mocha from 2.3.4 to 6.1.1 in /javascript-client#9

dependabot-preview[bot] wants to merge 1 commit into

masterFluxNotes/treatment-options-javascript-client:masterfrom

dependabot/npm_and_yarn/javascript-client/mocha-6.1.1FluxNotes/treatment-options-javascript-client:dependabot/npm_and_yarn/javascript-client/mocha-6.1.1Copy head branch name to clipboard