[UR] Bump UR tag to 04799e7 to get OpenCL adapter fixes

[callumfare]

Includes UR changes from [OpenCL] Fix memory leak and coverity issue with struct-to-array casts #1048 .

[kbenzie]

Now that oneapi-src/unified-runtime#1048 is merged, please pull in the latest sycl branch changes and update UNIFIED_RUNTIME_REPO & UNIFIED_RUNTIME_TAG as suggestion. Then make this ready for review.

[kbenzie]

@intel/llvm-gatekeepers please merge.

[againull]

@callumfare SYCL :: Basic/get_backend.cpp test is failing in post-commit after merging this PR. Could you please take a look?
Details:
https://github.com/intel/llvm/actions/runs/6943189569/job/18888237029

---

Failed Tests (1):
SYCL :: Basic/get_backend.cpp

2023-11-21T11:51:16.5243903Z FAIL: SYCL :: Basic/get_backend.cpp (191 of 1751)
2023-11-21T11:51:16.5245036Z ******************** TEST 'SYCL :: Basic/get_backend.cpp' FAILED ********************
2023-11-21T11:51:16.5245705Z Exit Code: -6
2023-11-21T11:51:16.5280748Z
2023-11-21T11:51:16.5281189Z Command Output (stdout):
2023-11-21T11:51:16.5281925Z --
2023-11-21T11:51:16.5282275Z # RUN: at line 1
2023-11-21T11:51:16.5284128Z /__w/llvm/llvm/toolchain/bin//clang++ -fsycl -fsycl-targets=spir64 /__w/llvm/llvm/llvm/sycl/test-e2e/Basic/get_backend.cpp -o /__w/llvm/llvm/build-e2e/Basic/Output/get_backend.cpp.tmp.out
2023-11-21T11:51:16.5287393Z # executed command: /__w/llvm/llvm/toolchain/bin//clang++ -fsycl -fsycl-targets=spir64 /__w/llvm/llvm/llvm/sycl/test-e2e/Basic/get_backend.cpp -o /__w/llvm/llvm/build-e2e/Basic/Output/get_backend.cpp.tmp.out
2023-11-21T11:51:16.5289341Z # note: command had no output on stdout or stderr
2023-11-21T11:51:16.5289976Z # RUN: at line 2
2023-11-21T11:51:16.5680409Z /__w/llvm/llvm/build-e2e/Basic/Output/get_backend.cpp.tmp.out
2023-11-21T11:51:16.5681568Z # executed command: /__w/llvm/llvm/build-e2e/Basic/Output/get_backend.cpp.tmp.out
2023-11-21T11:51:16.5682433Z # .---command stderr------------
2023-11-21T11:51:16.5683916Z # | terminate called after throwing an instance of 'sycl::_V1::runtime_error'
2023-11-21T11:51:16.5685771Z # | what(): Native API failed. Native API returns: -999 (Unknown PI error) -999 (Unknown PI error)
2023-11-21T11:51:16.5686858Z # `-----------------------------
2023-11-21T11:51:16.5880114Z # error: command failed with exit status: -6
2023-11-21T11:51:16.5960188Z
2023-11-21T11:51:16.6003733Z --
2023-11-21T11:51:16.6078884Z

[kbenzie]

@againull @callumfare has just finished for the day, we can look into this tomorrow.

[kbenzie]

I notice that the failing test is running on Level Zero not OpenCL. The UR changes this PR introduces are limited to only the OpenCL adapter as can be seen here.

I checked back 4 days of SYCL Post Commit runs and it is odd that Basic/get_backend.cpp never showed up as a failure until this PR but the e2e-lin Intel Arc A-Series Graphics with Level Zero workflow has been unstable that whole time.

I've been unable to reproduce this locally although I have an 8th gen iGPU rather than an Arc card. We can try to access another system to debug further tomorrow.

[callumfare]

I've not been able to reproduce the failure on an Arc A770, although I did see other E2E tests failing:

Failed Tests (11):
  SYCL :: DeviceLib/imf_fp32_rounding_test.cpp
  SYCL :: DeviceLib/string_test.cpp
  SYCL :: ESIMD/preemption.cpp
  SYCL :: KernelCompiler/kernel_compiler.cpp
  SYCL :: KernelCompiler/opencl_capabilities.cpp
  SYCL :: Plugin/level_zero_usm_residency.cpp
  SYCL :: Tracing/usm/queue_copy_released_pointer.cpp
  SYCL :: Tracing/usm/queue_single_task_nullptr.cpp
  SYCL :: Tracing/usm/queue_single_task_released_pointer.cpp
  SYCL :: USM/usm_leak_check.cpp
  SYCL :: XPTI/mem_alloc_events_linux.cpp

I suspect those might be related to the driver version.