Add tests for notification profilers (#57429)

Add tests for notification profilers (#57429)

Add CI tests for notification profilers, and fix a couple things to make life with multiple profilers easier
  * Reduced default timeout for profiler detach - we used to try at 300ms, 600ms, 5s, 10s, and then 10 minutes. The check is just a read of an int, so there's no reason to wait 10 minutes
  * Got rid of a couple asserts that were wrong since switching from the dedicated profiler attach thread to the diagnostics server implementation
  * ProfControlBlock::GetProfilerInfo would only work for active profilers, not attaching profilers, which could cause subtle bugs