Persistent `MonitorEvent`s #22493

Job	Run time
check_release	3m 9s
ext-test	6m 31s
tor-connect	6m 25s
fuzz	1h 28m 22s
benchmark	17m 55s
linting	2m 24s
rustfmt	14s
check_docs	7m 33s
build-cfg-flags / build (self-hosted, 1.75.0)	25m 37s
build-bindings / build (self-hosted, 1.75.0)	25m 32s
build-sync / build (self-hosted, 1.75.0)	18m 48s
build-workspace / build (self-hosted, 1.75.0)	12m 27s
build-nostd / build (self-hosted, 1.75.0)	21m 52s
build-features / build (self-hosted, 1.75.0)	33m 49s
coverage	1h 11m 11s
notify-failure	-1s
	5h 41m 48s

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