Bump mocha from 9.0.3 to 9.1.0

Bumps [mocha](https://github.com/mochajs/mocha) from 9.0.3 to 9.1.0.
- [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/v9.0.3...v9.1.0)

---
updated-dependencies:
- dependency-name: mocha
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -94,7 +94,7 @@
     "karma-webpack": "^5.0.0",
     "loglevelnext": "^5.0.5",
     "marked": "3.0.0",
-    "mocha": "9.0.3",
+    "mocha": "9.1.0",
     "pixelmatch": "^5.1.0",
     "pngjs": "^6.0.0",
     "proj4": "^2.7.5",