Merge pull request #133101 from isimluk/cleanup-testfiles

ci: client-go: test should cleanup their temp dir

Kubernetes-commit: 9636317da03df9e8e71eab9327854c0ec8dc9d7c

tools/clientcmd/main_test.go

@@ -29,5 +29,5 @@ func TestMain(m *testing.M) {
 	}
 	defer os.RemoveAll(tmp)
 	os.Setenv("KUBECONFIG", filepath.Join(tmp, "dummy-nonexistent-kubeconfig"))
-	os.Exit(m.Run())
+	m.Run()
 }