Update to @babel/[email protected].

Author: Robert Jackson

package.json

@@ -17,7 +17,7 @@
     "test": "qunit tests/**/*-test.js"
   },
   "dependencies": {
-    "@babel/parser": "^7.0.0-beta.51",
+    "@babel/parser": "^7.0.0-beta.53",
     "chalk": "^2.4.1",
     "common-tags": "^1.8.0",
     "execa": "^0.10.0",

yarn.lock

@@ -17,8 +17,8 @@
     js-tokens "^3.0.0"
 
 "@babel/parser@^7.0.0-beta.51":
-  version "7.0.0-beta.51"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.0.0-beta.51.tgz#27cec2df409df60af58270ed8f6aa55409ea86f6"
+  version "7.0.0-beta.53"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.0.0-beta.53.tgz#1f45eb617bf9463d482b2c04d349d9e4edbf4892"
 
 "@mrmlnc/readdir-enhanced@^2.2.1":
   version "2.2.1"