Bump grunt-mocha-test from 0.12.7 to 0.13.3 (#389)

Bumps [grunt-mocha-test](https://github.com/pghalliday/grunt-mocha-test) from 0.12.7 to 0.13.3.
- [Release notes](https://github.com/pghalliday/grunt-mocha-test/releases)
- [Commits](pghalliday/grunt-mocha-test@0.12.7...0.13.3)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -22,7 +22,7 @@
     "grunt-contrib-watch": "^1.0.0",
     "grunt-jsdoc": "^2.1.0",
     "grunt-karma": "^4.0.0",
-    "grunt-mocha-test": "^0.12.7",
+    "grunt-mocha-test": "^0.13.3",
     "karma": "^3.1.4",
     "karma-chai": "^0.1.0",
     "chai": "*",