fix(@schematics/angular): update typescript dependency to 3.1.3

Fixes issues related to microsoft/TypeScript#27341

Author: alan-agius4

packages/schematics/angular/package.json

@@ -11,6 +11,6 @@
   "dependencies": {
     "@angular-devkit/core": "0.0.0",
     "@angular-devkit/schematics": "0.0.0",
-    "typescript": "3.1.1"
+    "typescript": "3.1.3"
   }
 }