factory: raise on closed connections #1662

Job	Run time
Build wheels / Prepare matrix to run for 3.13 on `linux,macos-x86,macos-arm,windows,linux-aarch64`	4s
Build wheels / Build source distribution	15s
Build wheels / Build wheels for linux on ubuntu-24.04	15m 11s
Build wheels / Build wheels for macos-x86 on macos-15-intel	27m 20s
Build wheels / Build wheels for linux-aarch64 on ubuntu-24.04-arm	15m 28s
Build wheels / Build wheels for windows on windows-2022	6m 56s
Build wheels / Build wheels for macos-arm on macos-14	12m 31s
Publish wheels to PyPi	-1s
	1h 17m 44s

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