ctest: Drop --build-and-test build output buffering

Issue: #25790

Source/CTest/cmCTestBuildAndTest.cxx

@@ -282,7 +282,7 @@ int cmCTestBuildAndTest::Run()
     int retVal = cm.GetGlobalGenerator()->Build(
       cmake::NO_BUILD_PARALLEL_LEVEL, this->SourceDir, this->BinaryDir,
       this->BuildProject, { tar }, std::cout, this->BuildMakeProgram, config,
-      buildOptions, false, remainingTime, cmSystemTools::OUTPUT_NONE);
+      buildOptions, false, remainingTime, cmSystemTools::OUTPUT_PASSTHROUGH);
     // if the build failed then return
     if (retVal) {
       return 1;