chore(deps-dev): bump mocha from 6.2.2 to 7.1.1 (#27)

* chore(deps-dev): bump mocha from 6.2.2 to 7.1.1

Bumps [mocha](https://github.com/mochajs/mocha) from 6.2.2 to 7.1.1.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v6.2.2...v7.1.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Update and rename mocha.opts to .mocharc.yml

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Sukka <isukkaw@gmail.com>

package.json

@@ -33,7 +33,7 @@
     "chai": "^4.2.0",
     "eslint": "^6.1.0",
     "eslint-config-hexo": "^4.0.0",
-    "mocha": "^6.0.2",
+    "mocha": "^7.1.1",
     "nyc": "^15.0.0"
   }
 }

test/.mocharc.yml

@@ -0,0 +1 @@
+reporter: spec