ci: Add clean script

Author: rschristian

.github/workflows/ci.yml

@@ -47,3 +47,4 @@ jobs:
         with:
           repo-token: '${{ secrets.GITHUB_TOKEN }}'
           pattern: '**/dist/**/*.{js,mjs,cjs}'
+          clean-script: 'clean'

package.json

@@ -27,6 +27,7 @@
 	},
 	"scripts": {
 		"prepare": "npx simple-git-hooks",
+		"clean": "rm -rf dist",
 		"build": "microbundle -f cjs,es,umd --no-generateTypes",
 		"test": "npm run test:types & npm run test:browser",
 		"test:browser": "wtr test/browser/*.test.{js,jsx}",