Merge pull request #1014 from microsoft/dependencyupdate

update dependencies

Author: hellyzh

package-lock.json

@@ -563,14 +563,14 @@
     "gulp-tslint": "^8.1.4",
     "gulp-typescript": "^5.0.1",
     "minimist": "^1.2.0",
-    "mocha": "^6.2.2",
+    "mocha": "^6.2.3",
     "node-gyp": "^6.1.0",
     "plugin-error": "^1.0.1",
     "tslint": "^5.20.1",
     "typemoq": "^1.6.0",
     "typescript": "^2.2.1",
     "vscode": "^1.1.36",
-    "webpack": "^4.41.2"
+    "webpack": "^4.42.1"
   },
   "dependencies": {
     "body-parser": "^1.16.1",