update simple example dependencies

Author: chrisweb

examples/simple-player/client/package-lock.json

@@ -29,6 +29,6 @@
   "dependencies": {},
   "devDependencies": {
     "tslint": "5.18.0",
-    "typescript": "3.5.2"
+    "typescript": "3.5.3"
   }
 }

examples/simple-player/client/package.json

@@ -33,9 +33,9 @@
   },
   "devDependencies": {
     "@types/express": "4.17.0",
-    "@types/node": "12.0.10",
+    "@types/node": "12.6.8",
     "tslint": "5.18.0",
-    "typescript": "3.5.2"
+    "typescript": "3.5.3"
   },
   "type": "module"
 }