Add the client-side subscriptions/listen driver #3409

Job	Run time
checks / docs	47s
checks / readme-snippets	16s
checks / pre-commit	52s
checks / test (3.11, lowest-direct, windows-latest)	1m 55s
checks / test (3.10, lowest-direct, windows-latest)	1m 57s
checks / test (3.12, locked, windows-latest)	2m 12s
checks / test (3.10, locked, windows-latest)	1m 57s
checks / test (3.11, locked, windows-latest)	2m 3s
checks / test (3.11, lowest-direct, ubuntu-latest)	59s
checks / test (3.13, locked, ubuntu-latest)	1m 15s
checks / test (3.14, lowest-direct, windows-latest)	1m 48s
checks / test (3.13, locked, windows-latest)	1m 52s
checks / test (3.12, locked, ubuntu-latest)	1m 33s
checks / test (3.11, locked, ubuntu-latest)	1m 22s
checks / test (3.14, locked, windows-latest)	2m 43s
checks / test (3.14, locked, ubuntu-latest)	2m 18s
checks / test (3.10, locked, ubuntu-latest)	1m 30s
checks / test (3.13, lowest-direct, windows-latest)	2m 6s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 13s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 16s
checks / test (3.12, lowest-direct, windows-latest)	1m 55s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 6s
all-green	3s
	36m 22s

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