updated typescript & @types/node dev dev dependencies to latest

I don't see no harm in that, but let's test it out ... since I like to keep all my libs fresh :)

Author: RandomFractals

package-lock.json

@@ -356,9 +356,9 @@
   },
   "devDependencies": {
     "@types/mocha": "^5.2.7",
-    "@types/node": "^12.7.2",
+    "@types/node": "^12.7.3",
     "tslint": "^5.19.0",
-    "typescript": "^3.5.3",
+    "typescript": "^3.6.2",
     "vscode": "^1.1.36"
   },
   "dependencies": {