Merge pull request #6 from kijimaD/dependabot/npm_and_yarn/mocha-9.0.0

Bump mocha from 8.4.0 to 9.0.0

Author: kijimad

package-lock.json

@@ -41,7 +41,7 @@
         "date-fns": "^2.22.1",
         "eslint": "^7.28.0",
         "eslint-plugin-import": "^2.23.4",
-        "mocha": "^8.4.0",
+        "mocha": "^9.0.0",
         "power-assert": "^1.6.1",
         "textlint-rule-max-comma": "^2.0.2",
         "traverse": "^0.6.6",