aws_lambda_nodejs : add `NodejsFunctionV2` that uses rspack instead of esbuild for bundling

### Describe the feature

[Rspack](https://github.com/web-infra-dev/rspack) has been growing in popularity over the last year and it has [several advantages over esbuild](https://blog.logrocket.com/migrate-rspack-webpack/#rspack-vs-esbuild), so I think it would be nice to have an alternative construct that makes use of it.

### Use Case

Alternative bundler for `NodejsFunction`

### Proposed Solution

_No response_

### Other Information

_No response_

### Acknowledgements

- [ ] I may be able to implement this feature request
- [ ] This feature might incur a breaking change

### CDK version used

2.147.3

### Environment details (OS name and version, etc.)

Ubuntu 22.04.3 LTS

Start by reading the existing NodejsFunction bundling behavior and the Rspack and esbuild references linked in the issue. Establish the scope and compatibility expectations for a NodejsFunctionV2 alternative; done means the requested Rspack-based bundler behavior is clearly defined and implemented for AWS CDK.

Written by the indexing model from the issue text.