Update mocha requirement from ^9.1.1 to ^9.1.2

Updates the requirements on [mocha](https://github.com/mochajs/mocha) to permit the latest version.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mochajs/mocha/compare/v9.1.1...v9.1.2)

---
updated-dependencies:
- dependency-name: mocha
  dependency-type: direct:development
...

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

package.json

@@ -32,7 +32,7 @@
   "devDependencies": {
     "@alcalzone/release-script": "^2.2.1",
     "gulp": "^4.0.2",
-    "mocha": "^9.1.1",
+    "mocha": "^9.1.2",
     "chai": "^4.3.4"
   },
   "main": "main.js",