[FEA]: Investigate revising the approach to Catch2 test binary

### Is this a duplicate?

- [X] I confirmed there appear to be no [duplicate issues](https://github.com/NVIDIA/cccl/issues) for this request and that I agree to the [Code of Conduct](CODE_OF_CONDUCT.md)

### Area

CUB

### Is your feature request related to a problem? Please describe.

Today, the CUB tests build all the Catch2 tests into a single binary. This has caused some problems. We should investigate other ways of doing this.

### Describe the solution you'd like

Investigate other approaches.

### Describe alternatives you've considered

_No response_

### Additional context

_No response_