Bump flat and mocha in /integration-tests#48

dependabot[bot] wants to merge 1 commit intomastermonetha/js-verifiable-data:masterfrom

dependabot/npm_and_yarn/integration-tests/flat-and-mocha-5.0.2monetha/js-verifiable-data:dependabot/npm_and_yarn/integration-tests/flat-and-mocha-5.0.2Copy head branch name to clipboard