chore(dependencies): pin got to version 8 to support node 8

Author: dhruvdutt

package-lock.json

@@ -144,7 +144,7 @@
     "schema-utils": "^1.0.0",
     "ts-jest": "^23.10.1",
     "tslint": "^5.11.0",
-    "typedoc": "^0.13.0",
+    "typedoc": "^0.12.0",
     "typedoc-plugin-monorepo": "^0.1.0",
     "typescript": "^3.1.3",
     "webpack": "^4.19.1",