chore(deps): update dependency @types/mocha to v5.2.7

Author: renovate-bot

package.json

@@ -56,7 +56,7 @@
     "@commitlint/cli": "7.2.1",
     "@commitlint/config-conventional": "7.1.2",
     "@types/execa": "0.9.0",
-    "@types/mocha": "5.2.6",
+    "@types/mocha": "5.2.7",
     "@types/mz": "0.0.32",
     "@types/node": "8.10.29",
     "@types/semver": "5.5.0",