chore(package): update ts-mockito to version 2.4.2

Closes #152

Author: greenkeeper[bot]

package.json

@@ -99,7 +99,7 @@
         "mocha": "6.1.4",
         "remap-istanbul": "0.13.0",
         "pump": "3.0.0",
-        "ts-mockito": "2.3.1",
+        "ts-mockito": "2.4.2",
         "tslint": "5.10.0",
         "typemoq": "2.1.0",
         "typescript": "2.8.3",