[OpenMP][lit] Flaky lit test tasking/issue-94260-2.c

Seeing some sporadic failures on our builder:

https://lab.llvm.org/buildbot/#/builders/225/builds/351

https://lab.llvm.org/buildbot/#/builders/225/builds/92

```
******************** TEST 'libomp :: tasking/issue-94260-2.c' FAILED ********************
Exit Code: -11
Command Output (stdout):
--
# RUN: at line 1
/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/clang -fopenmp -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/openmp/runtime/test -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -fno-omit-frame-pointer -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/openmp/runtime/test/ompt /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/openmp/runtime/test/tasking/issue-94260-2.c -o /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/test/tasking/Output/issue-94260-2.c.tmp -lm -latomic && /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/test/tasking/Output/issue-94260-2.c.tmp
# executed command: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/clang -fopenmp -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/openmp/runtime/test -L /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/src -fno-omit-frame-pointer -I /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/openmp/runtime/test/ompt /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/openmp/runtime/test/tasking/issue-94260-2.c -o /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/test/tasking/Output/issue-94260-2.c.tmp -lm -latomic
# executed command: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/openmp/runtime/test/tasking/Output/issue-94260-2.c.tmp
# note: command had no output on stdout or stderr
# error: command failed with exit status: -11
--
********************
```