[SYCL] Re-enable vulkan_sycl_image_unsampled_timeline_semaphore e2e test on Linux DG2 and ARL (#22071)
This PR re-enables vulkan_sycl_image_unsampled_timeline_semaphore e2e
test.
The reason why I am re-enabling this test is that I can't reproduce hang
reported in https://github.com/intel/llvm/issues/21764
with new compute runtime version used by intel/llvm CI `26.18.38308.1`.
I was able to reproduce the issue when test is run in parallel.
It fails on certain version of compute runtime. Versions I have checked:
```
26.01.36711.4 - Passes
26.09.37435.1 - Fails
26.14.37833.4 - Fails
26.18.38308.1 - Passes
```
llvm
38cd50db - [SYCL] Re-enable vulkan_sycl_image_unsampled_timeline_semaphore e2e test on Linux DG2 and ARL (#22071)
