Get npm run dev to work again

Signed-off-by: Sebastian Malton <sebastian@malton.name>

packages/bump-version-for-cron/package.json

@@ -5,7 +5,9 @@
   "license": "MIT",
   "scripts": {
     "clean": "rimraf dist/",
-    "build": "swc ./src/index.ts -d ./dist"
+    "build": "swc ./src/index.ts -d ./dist",
+    "postbuild": "run-script-os",
+    "postbuild:nix": "chmod u+x ./dist/index.js"
   },
   "type": "module",
   "bin": "./dist/index.js",
@@ -26,6 +28,7 @@
     "@swc/core": "^1.3.37",
     "@types/node": "^16.18.11",
     "@types/semver": "^7.3.13",
-    "rimraf": "^4.1.2"
+    "rimraf": "^4.1.2",
+    "run-script-os": "^1.1.6"
   }
 }