chore(package): update karma-typescript to version 5.0.3

Closes #288

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "karma-jasmine": "^1.1.0",
     "karma-mocha-reporter": "^2.2.1",
     "karma-scss-preprocessor": "^3.0.0",
-    "karma-typescript": "^3.0.0",
+    "karma-typescript": "^5.0.3",
     "matchdep": "^2.0.0",
     "node-sass": "^4.1.1",
     "time-grunt": "^1.4.0",