fix(deps): update dependency mocha to ^6.2.1

Author: renovate-bot

Diff for: package.json

@@ -47,7 +47,7 @@
     "babel-plugin-static-fs": "^3.0.0",
     "confirmer": "^1.1.2",
     "cross-spawn": "^7.0.0",
-    "mocha": "^6.2.0",
+    "mocha": "^6.2.1",
     "pkg-to-readme": "^1.1.0",
     "textlint-tester": "^5.1.9"
   },

Diff for: yarn.lock

@@ -2910,7 +2910,7 @@ [email protected], mkdirp@^0.5.0, mkdirp@^0.5.1:
   dependencies:
     minimist "0.0.8"
 
-mocha@^6.2.0:
+mocha@^6.2.1:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/mocha/-/mocha-6.2.1.tgz#da941c99437da9bac412097859ff99543969f94c"
   integrity sha512-VCcWkLHwk79NYQc8cxhkmI8IigTIhsCwZ6RTxQsqK6go4UvEhzJkYuHm8B2YtlSxcYq2fY+ucr4JBwoD6ci80A==