tests/functional/x86_64/test_reverse_debug: Silence pylint warning

Pylint does not like the underscores in the class name here, so
rename the class accordingly to make pylint happy here.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20251119082636.43286-8-thuth@redhat.com>

tests/functional/x86_64/test_reverse_debug.py

@@ -18,7 +18,7 @@ from qemu_test import skipFlakyTest
 from reverse_debugging import ReverseDebugging
 
 
-class ReverseDebugging_X86_64(ReverseDebugging):
+class ReverseDebuggingX86(ReverseDebugging):
 
     @skipFlakyTest("https://gitlab.com/qemu-project/qemu/-/issues/2922")
     def test_x86_64_pc(self):