fix: Fixed yarn prepare failure (#439)

## Description

`yarn prepare` was failing on main and I couldn't install library
locally properly. It works with those changes.
Reviewers, please check if `yarn prepare` works at main for you - maybe
it is a gimmick of my local setup?
Also bumped required version of node as new builder-bob requires it.

### Type of change

- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Documentation update (improves or adds clarity to existing
documentation)

---------

Co-authored-by: chmjkb <jakubchmura1607@gmail.com>

Author: pweglik

.nvmrc

@@ -1 +1 @@
-v18
+v20

packages/react-native-executorch/android/libs/classes.jar

@@ -3,7 +3,7 @@
   "version": "0.4.2",
   "description": "An easy way to run AI models in React Native with ExecuTorch",
   "source": "./src/index.ts",
-  "main": "./lib/commonjs/index.js",
+  "main": "./lib/module/index.js",
   "module": "./lib/module/index.js",
   "types": "./lib/typescript/index.d.ts",
   "react-native": "src/index",
@@ -71,7 +71,8 @@
     "metro-react-native-babel-preset": "^0.77.0",
     "react": "19.0.0",
     "react-native": "0.79.2",
-    "react-native-builder-bob": "^0.30.2"
+    "react-native-builder-bob": "^0.40.12",
+    "typescript": "~5.8.3"
   },
   "resolutions": {
     "@types/react": "^18.2.44"

packages/react-native-executorch/package.json

@@ -2,7 +2,7 @@
   "extends": "../../tsconfig.json",
   "compilerOptions": {
     "rootDir": "src",
-    "outDir": "lib",
+    "tsBuildInfoFile": "./lib/typescript/tsconfig.tsbuildinfo",
     "composite": true,
     "allowJs": false,
     "allowUnreachableCode": false,