UR CTS command-buffer release/retain OpenCL fails

[EwanC]

Describe the bug

There are unexplained fails in the UR command-buffer CTS tests on OpenCL adapter for Intel CPU relating to release/retain.

lit: /__w/llvm/llvm/unified-runtime/test/conformance/lit.cfg.py:45: note: Running Unified Runtime conformance tests with ONEAPI_DEVICE_SELECTOR='opencl:*;native_cpu:*':
lit: /__w/llvm/llvm/unified-runtime/test/conformance/lit.cfg.py:56: note:   [native_cpu:cpu] SYCL_NATIVE_CPU, SYCL Native CPU 0.1 [0.0.0]
lit: /__w/llvm/llvm/unified-runtime/test/conformance/lit.cfg.py:56: note:   [opencl:cpu] Intel(R) OpenCL, Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz OpenCL 3.0 (Build 0) [2025.20.6.0.04_224945]
lit: /__w/llvm/llvm/unified-runtime/.venv/lib/python3.10/site-packages/lit/main.py:72: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 120 seconds was requested on the command line. Forcing timeout to be 120 seconds.
-- Testing: 2094 tests, 128 workers --
FAIL: Unified Runtime Conformance :: exp_command_buffer//exp_command_buffer-test/1/178 (684 of 2094)
******************** TEST 'Unified Runtime Conformance :: exp_command_buffer//exp_command_buffer-test/1/178' FAILED ********************
Script(shard):
--
GTEST_OUTPUT=json:/__w/llvm/llvm/build/test/conformance/exp_command_buffer/exp_command_buffer-test-Unified Runtime Conformance-6640-1-178.json GTEST_SHUFFLE=0 GTEST_TOTAL_SHARDS=178 GTEST_SHARD_INDEX=1 /__w/llvm/llvm/build/test/conformance/exp_command_buffer/exp_command_buffer-test
--

Note: This is test shard 2 of 178.
[==========] Running 2 tests from 2 test suites.
[----------] Global test environment set-up.
[----------] 1 test from urCommandBufferReleaseExpTest
[ RUN      ] urCommandBufferReleaseExpTest.Success/UR_BACKEND_OPENCL__Intel_R__OpenCL__Intel_R__Xeon_R__Platinum_8358_CPU___2_60GHz_ID1ID____________________

--
exit: -11
--
shard JSON output does not exist: /__w/llvm/llvm/build/test/conformance/exp_command_buffer/exp_command_buffer-test-Unified Runtime Conformance-6640-1-178.json
********************
Testing:  0.. 10.. 20.. 30..
FAIL: Unified Runtime Conformance :: exp_command_buffer//exp_command_buffer-test/5/178 (823 of 2094)
******************** TEST 'Unified Runtime Conformance :: exp_command_buffer//exp_command_buffer-test/5/178' FAILED ********************
Script(shard):
--
GTEST_OUTPUT=json:/__w/llvm/llvm/build/test/conformance/exp_command_buffer/exp_command_buffer-test-Unified Runtime Conformance-6640-5-178.json GTEST_SHUFFLE=0 GTEST_TOTAL_SHARDS=178 GTEST_SHARD_INDEX=5 /__w/llvm/llvm/build/test/conformance/exp_command_buffer/exp_command_buffer-test
--

Note: This is test shard 6 of 178.
[==========] Running 2 tests from 2 test suites.
[----------] Global test environment set-up.
[----------] 1 test from urCommandBufferRetainExpTest
[ RUN      ] urCommandBufferRetainExpTest.Success/UR_BACKEND_OPENCL__Intel_R__OpenCL__Intel_R__Xeon_R__Platinum_8358_CPU___2_60GHz_ID1ID____________________

--
exit: -11
--
shard JSON output does not exist: /__w/llvm/llvm/build/test/conformance/exp_command_buffer/exp_command_buffer-test-Unified Runtime Conformance-6640-5-178.json
********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
********************
Failed Tests (2):
  Unified Runtime Conformance :: exp_command_buffer//exp_command_buffer-test/1/178
  Unified Runtime Conformance :: exp_command_buffer//exp_command_buffer-test/5/178

These are disabled by #19138 to get CI green, but need further investigated

To reproduce

No response

Environment

No response

Additional context

No response