[SYCL][E2E] Align use of features in tests

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

We've discovered few duplications in https://github.com/intel/llvm/pull/16019:

- `windows` and `system-windows` https://llvm.org/docs/CommandGuide/lit.html#default-features
- `level_zero` and `level-zero` - not sure which one should be used, there are only 2 uses of `level-zero`, the rest of tests uses `level_zero`, but it looks like both options are valid.

### Describe the solution you would like

_No response_

### Describe alternatives you have considered

_No response_

### Additional context

_No response_