[FEA]: Relax Catch2 header order requirements

[gevtushenko]

Is this a duplicate?

• I confirmed there appear to be no duplicate issues for this request and that I agree to the Code of Conduct

Area

CUB

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

Currently, we require that all CUB headers in Catch2 tests are placed before the helper header. This requirement comes from a cudafe bug. We have to revisit this issue to see if the warning suppression is still required.

Describe the solution you'd like

No header order is required.

Describe alternatives you've considered

No response

Additional context

No response