[meta] run the build in prepack, not prepublish

Author: ljharb

package.json

@@ -17,14 +17,14 @@
   },
   "main": "lib/index.js",
   "scripts": {
-    "prepack": "npmignore --auto --commentLines=autogenerated",
+    "prepack": "npmignore --auto --commentLines=autogenerated && npm run build",
     "build": "rimraf lib && babel src --out-dir lib --copy-files",
     "create": "node ./scripts/create-rule",
     "flow": "flow",
     "lint:fix": "npm run lint -- --fix",
     "lint": "eslint --ext=js,mjs,cjs,ts,tsx .",
     "prepublish": "not-in-publish || npm run prepublishOnly",
-    "prepublishOnly": "safe-publish-latest && npm run lint && npm run flow && npm run jest && npm run build",
+    "prepublishOnly": "safe-publish-latest && npm run lint && npm run flow && npm run jest",
     "pretest": "npm run lint:fix && npm run flow",
     "test": "npm run jest",
     "posttest": "aud --production",