SWDEV-448163 - Fix Doxygen warnings

Change-Id: If72e312461a72920b6a482009c9aef4cf92f2e1b


[ROCm/hip-tests commit: 6c23e25c86]

projects/hip-tests/catch/unit/graph/hipGraphGetNodes.cc

@@ -277,3 +277,8 @@ TEST_CASE("Unit_hipGraphGetNodes_Negative_Parameters") {
   HIP_CHECK(hipEventDestroy(event_start));
   free(nodes);
 }
+
+/**
+* End doxygen group GraphTest.
+* @}
+*/