chore(ui): update deps

Author: Guillaume Chau

packages/@vue/cli-init/package.json

@@ -21,7 +21,7 @@
   },
   "homepage": "https://github.com/vuejs/vue-cli/packages/@vue/cli-init#readme",
   "dependencies": {
-    "execa": "^0.9.0",
+    "execa": "^0.10.0",
     "vue-cli": "^2.9.2"
   }
 }

packages/@vue/cli-shared-utils/package.json

@@ -21,7 +21,7 @@
   "dependencies": {
     "chalk": "^2.3.0",
     "cmd-shim": "^2.0.2",
-    "execa": "^0.9.0",
+    "execa": "^0.10.0",
     "joi": "^12.0.0",
     "node-ipc": "^9.1.1",
     "opn": "^5.2.0",

packages/@vue/cli/package.json

@@ -36,7 +36,7 @@
     "deepmerge": "^2.0.1",
     "download-git-repo": "^1.0.2",
     "ejs": "^2.5.7",
-    "execa": "^0.8.0",
+    "execa": "^0.10.0",
     "fs-extra": "^6.0.0",
     "globby": "^8.0.1",
     "import-global": "^0.1.0",