chore: remove redundant prepare script from package.json

Author: Le-Caignec

safe-transaction/package.json

@@ -4,8 +4,7 @@
   "description": "GitHub Action for proposing Safe transactions",
   "main": "dist/index.js",
   "scripts": {
-    "build": "ncc build src/index.js -o dist",
-    "prepare": "npm run build"
+    "build": "ncc build src/index.js -o dist"
   },
   "dependencies": {
     "@actions/core": "^1.10.1",