adjusting `socketserver.BaseServer` #10769

Job	Run time
Check stdlib with stubtest (ubuntu-24.04, 3.8)	34s
Check stdlib with stubtest (ubuntu-24.04, 3.9)	40s
Check stdlib with stubtest (ubuntu-24.04, 3.10)	40s
Check stdlib with stubtest (ubuntu-24.04, 3.11)	38s
Check stdlib with stubtest (ubuntu-24.04, 3.12)	35s
Check stdlib with stubtest (ubuntu-24.04, 3.13)	37s
Check stdlib with stubtest (windows-latest, 3.8)	1m 19s
Check stdlib with stubtest (windows-latest, 3.9)	1m 1s
Check stdlib with stubtest (windows-latest, 3.10)	1m 10s
Check stdlib with stubtest (windows-latest, 3.11)	1m 11s
Check stdlib with stubtest (windows-latest, 3.12)	59s
Check stdlib with stubtest (windows-latest, 3.13)	2m 14s
Check stdlib with stubtest (macos-latest, 3.8)	59s
Check stdlib with stubtest (macos-latest, 3.9)	42s
Check stdlib with stubtest (macos-latest, 3.10)	51s
Check stdlib with stubtest (macos-latest, 3.11)	32s
Check stdlib with stubtest (macos-latest, 3.12)	31s
Check stdlib with stubtest (macos-latest, 3.13)	23s
	15m 36s

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