Don't close real process stdio in stdio_server (#1933) #3464

Job	Run time
checks / pre-commit	49s
checks / docs	36s
checks / readme-snippets	12s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.14, lowest-direct, windows-latest)	1m 54s
checks / test (3.10, lowest-direct, windows-latest)	1m 48s
checks / test (3.13, locked, ubuntu-latest)	1m 18s
checks / test (3.10, locked, ubuntu-latest)	1m 31s
checks / test (3.12, locked, ubuntu-latest)	1m 21s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 15s
checks / test (3.12, lowest-direct, windows-latest)	2m 28s
checks / test (3.13, locked, windows-latest)	1m 59s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 19s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 19s
checks / test (3.13, lowest-direct, windows-latest)	2m 5s
checks / test (3.11, lowest-direct, windows-latest)	1m 49s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 22s
checks / test (3.11, locked, windows-latest)	2m 18s
checks / test (3.14, locked, ubuntu-latest)	1m 24s
checks / test (3.12, locked, windows-latest)	1m 56s
checks / test (3.11, locked, ubuntu-latest)	1m 22s
checks / test (3.14, locked, windows-latest)	2m 24s
checks / test (3.10, locked, windows-latest)	1m 58s
all-green	3s
	35m 51s

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