update bootstrap (#1858)

package.json

@@ -9,7 +9,7 @@
     "packages"
   ],
   "scripts": {
-    "bootstrap": "npm i",
+    "bootstrap": "yarn || npm i",
     "build:file": "node build/bin/iconInit.js & node build/bin/build-entry.js & node build/bin/i18n.js",
     "build:theme": "node build/bin/gen-cssfile && gulp build --gulpfile packages/theme-default/gulpfile.js && cp-cli packages/theme-default/lib lib/theme-default",
     "build:utils": "cross-env BABEL_ENV=utils babel src --out-dir lib --ignore src/index.js",
@@ -22,7 +22,7 @@
     "dist:all": "node build/bin/build-all.js && npm run build:theme",
     "i18n": "node build/bin/i18n.js",
     "lint": "eslint src/**/* test/**/* packages/**/*.{js,vue} build/**/* --quiet",
-    "pub": "sh build/git-release.sh && sh build/release.sh",
+    "pub": "npm run bootstrap && sh build/git-release.sh && sh build/release.sh",
     "pub:all": "npm run dist:all && lerna publish",
     "test": "npm run lint && CI_ENV=/dev/ karma start test/unit/karma.conf.js --single-run",
     "test:watch": "karma start test/unit/karma.conf.js"