Documentation, sanitizers, and PTL submodule (#71)

* Update scripts/thread-sanitizer-suppr.txt

- ignore data race occasionally triggered by libamdhip64.so

* Update external/CMakeLists.txt

- configure PTL to use locks in task queues

* Update PTL submodule

- tweal to task queues to prevent data race from std::list next pointer

* Add scripts/setup-sanitizer-env.sh

- bash script that exports the {ASAN,LSAN,TSAN}_OPTIONS used by run-ci.py

* Update include/rocprofiler (doxygen)

- fix doxygen grouping

* Update docs workflow

- change concurrency group to be specific to workflow + ref
  - this prevents separate PRs triggering this workflow from cancelling each other

source/include/rocprofiler/pc_sampling.h

@@ -28,7 +28,9 @@
 
 ROCPROFILER_EXTERN_C_INIT
 
-/** @defgroup PC_SAMPLING_SERVICE PC Sampling Service
+/**
+ * @defgroup PC_SAMPLING_SERVICE PC Sampling
+ * @brief Enabling PC (Program Counter) Sampling for GPU Activity
  * @{
  */