SWDEV-448163 - Fix Doxygen warnings

Change-Id: If72e312461a72920b6a482009c9aef4cf92f2e1b

catch/unit/module/hipModuleLaunchCooperativeKernelMultiDevice.cc

@@ -224,4 +224,9 @@ TEST_CASE("Unit_hipModuleLaunchCooperativeKernelMultiDevice_Negative_MultiKernel
   for (const auto params : params_list) {
     HIP_CHECK(hipStreamDestroy(params.hStream));
   }
-}
+}
+
+/**
+* End doxygen group ModuleTest.
+* @}
+*/