build: remove lerna

package.json

@@ -1,5 +1,6 @@
 {
   "private": true,
+  "version": "3.0.0-alpha.1",
   "workspaces": [
     "packages/*"
   ],
@@ -11,7 +12,8 @@
     "size": "yarn size-runtime && yarn size-compiler",
     "lint": "prettier --write --parser typescript \"packages/**/*.ts?(x)\"",
     "test": "node scripts/build.js vue -f global -d && jest",
-    "test-dts": "node scripts/build.js reactivity runtime-core runtime-dom -t -f esm && tsd"
+    "test-dts": "node scripts/build.js reactivity runtime-core runtime-dom -t -f esm && tsd",
+    "release": "node scripts/release.js"
   },
   "types": "test-dts/index.d.ts",
   "tsd": {
@@ -39,10 +41,10 @@
     "@types/puppeteer": "^2.0.0",
     "brotli": "^1.3.2",
     "chalk": "^2.4.2",
+    "enquirer": "^2.3.2",
     "execa": "^2.0.4",
     "fs-extra": "^8.1.0",
     "jest": "^24.9.0",
-    "lerna": "^3.16.4",
     "lint-staged": "^9.2.3",
     "minimist": "^1.2.0",
     "prettier": "~1.14.0",