Update Karma-typescript

Author: kristoferbaxter

package.json

@@ -38,7 +38,7 @@
     "karma-firefox-launcher": "1.3.0",
     "karma-ie-launcher": "1.0.0",
     "karma-mocha": "1.3.0",
-    "karma-typescript": "4.1.1",
+    "karma-typescript": "5.0.3",
     "magic-string": "0.25.7",
     "mocha": "6.2.3",
     "opener": "1.5.1",