Unify XPU launchers

[anmyachev]

We have several launchers, the code of which is mostly duplicated. To simplify support, we can try to reuse the code where possible, without duplicating it.

For example:

• intel-xpu-backend-for-triton/benchmarks/triton_kernels_benchmark/benchmark_driver.py

  Line 402 in 5529b87

  class XPULauncher:

• intel-xpu-backend-for-triton/third_party/intel/backend/driver.py

  Line 493 in 5529b87

  class XPULauncher(object):

Source ref: #2535 (comment)