fuzz: add force-close support to chanmon_consistency #23009

Job	Run time
rustfmt	16s
tor-connect	5m 50s
check_release	2m 54s
check_docs	5m 11s
build-sync / build (self-hosted, 1.75.0)	9m 17s
build-cfg-flags / build (self-hosted, 1.75.0)	8m 55s
fuzz_sanity	9m 25s
linting	2m 32s
build-workspace / build (self-hosted, 1.75.0)	9m 5s
build-features / build (self-hosted, 1.75.0)	7m 16s
build-nostd / build (self-hosted, 1.75.0)	9m 18s
fuzz	9m 18s
ext-test	6m 38s
benchmark	5m 47s
build-bindings / build (self-hosted, 1.75.0)	8m 46s
coverage	1s
notify-failure	1s
	1h 40m 30s

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