chore: update ng cli dependencies

Author: sis0k0

package.json

@@ -30,8 +30,8 @@
     "zone.js": "^0.8.26"
   },
   "devDependencies": {
-    "@angular/compiler-cli": "~6.1.0-beta.1",
-    "@ngtools/webpack": "6.1.0-rc.0",
+    "@angular/compiler-cli": "~6.1.0-rc.0",
+    "@ngtools/webpack": "~6.1.0-rc.2",
     "@types/chai": "~4.1.3",
     "@types/mocha": "~5.2.1",
     "@types/node": "^7.0.5",