chore: update deps

Author: daviddias

package.json

@@ -64,7 +64,7 @@
     "delay": "^1.3.1",
     "detect-node": "^2.0.3",
     "eslint-plugin-react": "^6.8.0",
-    "execa": "^0.5.0",
+    "execa": "^0.6.0",
     "expose-loader": "^0.7.1",
     "form-data": "^2.1.2",
     "fs-pull-blob-store": "^0.4.1",