[meta] run build in prepack, not prepublish

Author: ljharb

package.json

@@ -60,8 +60,8 @@
         "tape": "^5.7.5"
     },
     "scripts": {
-        "prepack": "npmignore --auto --commentLines=autogenerated",
-        "prepublishOnly": "safe-publish-latest && npm run dist",
+        "prepack": "npmignore --auto --commentLines=autogenerated && npm run dist",
+        "prepublishOnly": "safe-publish-latest",
         "prepublish": "not-in-publish || npm run prepublishOnly",
         "pretest": "npm run --silent readme && npm run --silent lint",
         "test": "npm run tests-only",