chore(package): update mocha to version 7.1.2

Closes #70

Author: greenkeeper[bot]

package.json

@@ -54,7 +54,7 @@
     "eslint-plugin-jsx-a11y": "^6.2.3",
     "eslint-plugin-react": "^7.14.3",
     "in-publish": "^2.0.0",
-    "mocha": "^5.2.0",
+    "mocha": "^7.1.2",
     "prop-types": "^15.7.2",
     "react": "^16.8.6",
     "react-dom": "^16.8.6",