## Explanation

### What is the current state of things and why does it need to change?

The `publish-preview.yml` GitHub Actions workflow is still using
`ts-node` to execute the `generate-preview-build-message.ts` script.
However, the project has recently migrated from `ts-node` to `tsx`
[PR](#6481)

## References

- N/A

## Checklist

- [x] I've updated the test suite for new or updated code as appropriate
  - No test changes needed for this workflow update
- [x] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
  - No documentation changes needed
- [x] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/contributing.md#updating-changelogs),
highlighting breaking changes as necessary
  - No changelog needed as this is an internal workflow change
- [x] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes
  - No breaking changes - internal workflow update only

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)

## **Description**

This change mirrors the successful optimization implemented in
[MetaMask/core#6481](https://github.com/MetaMask/core/pull/6481/files)
and provides significant performance improvements for TypeScript script
execution in large monorepos.

## **Related issues**

Fixes: N/A

## **Manual testing steps**

- [x] Run `yarn lint` and verify it completes successfully without
hanging
- [x] Run `yarn lint:eslint` individually to confirm ESLint processing
works
- [x] Test `yarn create-component:react` to ensure component generation
still works
- [x] Test `yarn update-readme-content` to verify documentation scripts
work
- [x] Verify all other scripts using TypeScript execution continue to
function

## **Screenshots/Recordings**

Not applicable - this is a build/tooling performance optimization
without visual changes.

## **Pre-merge author checklist**

- [x] I have reviewed the Files changed tab
- [x] All CI checks pass (yarn lint now works without hanging)
- [x] The same scripts work in all workspace packages
- [x] All TypeScript script executions use the faster `tsx` instead of
`ts-node`
- [x] LavaMoat configuration updated to allow `tsx>esbuild` instead of
`ts-node>@swc/core`
- [x] Dependency configuration updated in depcheck to ignore `tsx`
instead of `ts-node`
- [x] Script shebang lines updated in all affected files
- [x] I have tested this PR on my local machine

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

## **Technical Details**

**Files Changed:**
- **Root package.json**: Updated 3 scripts (`create-package`,
`lint:eslint`, `update-readme-content`)
- **Dependency updates**: Replaced `ts-node` with `tsx` in
devDependencies
- **LavaMoat config**: Updated to allow `tsx>esbuild` instead of
`ts-node>@swc/core`
- **Package scripts**: Updated React and React Native packages to use
`tsx`
- **Build scripts**: Updated shebang lines and direct script calls
- **Depcheck config**: Updated to ignore `tsx` instead of `ts-node`

**Performance Impact:**
- **Before**: `yarn lint` would hang indefinitely
- **After**: `yarn lint` completes successfully in reasonable time
- **Benefit**: Enables faster development cycles and unblocks CI/CD
pipelines

**References:**
- Inspired by MetaMask/core optimization:
https://github.com/MetaMask/core/pull/6481/files
- `tsx` documentation: https://github.com/esbuild-kit/tsx

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Replace ts-node with tsx for TypeScript scripts, updating scripts,
configs, shebangs, and dependencies.
> 
> - **Tooling**:
> - Migrate TypeScript script runner from `ts-node` to `tsx` across
repo.
> - Update script invocations in root `package.json` (`create-package`,
`lint:eslint`, `update-readme-content`).
> - Switch package scripts in `packages/design-system-react` and
`packages/design-system-react-native` (`create-component`,
`generate-icons`, `generate-icons:index`).
> - Update build step in
`packages/design-system-react-native/scripts/build.js` to call `tsx`.
> - Change shebangs in `scripts/generate-preview-build-message.ts` and
`scripts/update-readme-content.ts` to `#!yarn tsx`.
> - **Config**:
> - Update LavaMoat `allowScripts` from `ts-node>@swc/core` to
`tsx>esbuild`.
>   - Adjust `.depcheckrc.yml` ignores to `tsx`.
> - **Dependencies**:
> - Remove `ts-node`; add `tsx` and related `esbuild` entries; refresh
`yarn.lock`.
> 
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