Persistent `MonitorEvent`s #22820

Job	Run time
check_docs	7m 58s
rustfmt	13s
check_release	2m 54s
fuzz_sanity	11m 14s
tor-connect	6m 24s
ext-test	6m 8s
linting	2m 36s
build-sync / build (self-hosted, 1.75.0)	24m 45s
fuzz	53m 25s
build-features / build (self-hosted, 1.75.0)	41m 32s
build-bindings / build (self-hosted, 1.75.0)	30m 46s
build-cfg-flags / build (self-hosted, 1.75.0)	18m 49s
benchmark	16m 52s
build-nostd / build (self-hosted, 1.75.0)	21m 29s
build-workspace / build (self-hosted, 1.75.0)	19m 19s
coverage	26m 21s
notify-failure	0s
	4h 50m 45s

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