[proton] Fix the missing 'break' in RoctracerProfiler (#7661)

In apiCallback() function case HIP_API_ID_hipStreamEndCapture is
missing a 'break' and causing unintentional fall-through to
HIP_API_ID_hipLaunchKernel.

Author: noclowns

third_party/proton/csrc/lib/Profiler/RocTracer/RoctracerProfiler.cpp

@@ -271,6 +271,7 @@ void RoctracerProfiler::RoctracerProfilerPimpl::apiCallback(
         uint32_t StreamCaptureCount = pImpl->StreamToCaptureCount[Stream];
         pImpl->GraphToNumInstances[Graph] = StreamCaptureCount;
         pImpl->StreamToCapture.erase(Stream);
+        break;
       }
       case HIP_API_ID_hipLaunchKernel: {
         hipStream_t Stream = data->args.hipLaunchKernel.stream;