[SYCL][CI][diagnostic] Run only program_manager unittests for UAF trace
The full check-sycl-unittests target builds and runs every unittest binary,
which is slow and unnecessary for the intel/llvm#22367 diagnostic: only the
program_manager tests (SubDevices / ImageRemoval) exercise the orphaned-Managed
teardown. Build and run just ProgramManagerTests-Non_Preview_Tests directly so
the trace is produced quickly; the orphan drains at that process's own exit.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>