Convert back to CJS and use ncc.

package.json

@@ -3,7 +3,6 @@
   "author": "GraalVM Community",
   "description": "GitHub Action for GraalVM",
   "version": "1.3.0",
-  "type": "module",
   "private": true,
   "repository": {
     "type": "git",
@@ -27,8 +26,8 @@
     "format:check": "npx prettier --check .",
     "lint": "npx eslint .",
     "package": "npm run package:main && npm run package:cleanup",
-    "package:main": "npx rollup --config rollup.main.config.ts --configPlugin @rollup/plugin-typescript",
-    "package:cleanup": "npx rollup --config rollup.cleanup.config.ts --configPlugin @rollup/plugin-typescript",
+    "package:main": "npx ncc build src/main.ts -o dist/main",
+    "package:cleanup": "npx ncc build src/cleanup.ts -o dist/cleanup",
     "test": "npx jest",
     "all": "npm run format:write && npm run lint && npm run test && npm run package"
   },
@@ -50,16 +49,13 @@
   },
   "devDependencies": {
     "@eslint/compat": "^1.2.6",
-    "@rollup/plugin-commonjs": "^28.0.1",
-    "@rollup/plugin-json": "^6.1.0",
-    "@rollup/plugin-node-resolve": "^16.0.0",
-    "@rollup/plugin-typescript": "^12.1.1",
     "@types/jest": "^29.5.14",
     "@types/node": "^20.17.17",
     "@types/semver": "^7.5.8",
     "@types/uuid": "^10.0.0",
     "@typescript-eslint/eslint-plugin": "^8.24.0",
     "@typescript-eslint/parser": "^8.24.0",
+    "@vercel/ncc": "^0.38.3",
     "eslint": "^9.20.1",
     "eslint-config-prettier": "^10.0.1",
     "eslint-import-resolver-typescript": "^3.6.3",
@@ -72,13 +68,8 @@
     "js-yaml": "^4.1.0",
     "prettier": "^3.5.0",
     "prettier-eslint": "^16.3.0",
-    "rollup": "^4.34.1",
     "ts-jest": "^29.2.5",
-    "ts-jest-resolver": "^2.0.1",
     "ts-node": "^10.9.2",
     "typescript": "^5.7.3"
-  },
-  "optionalDependencies": {
-    "@rollup/rollup-linux-x64-gnu": "*"
   }
 }