Add APIs to prune completed state for LSPS1/LSPS2/LSPS5 #22910

Job	Run time
ext-test	7m 53s
benchmark	17m 40s
check_docs	4m 59s
fuzz_sanity	13m 37s
check_release	1m 19s
tor-connect	7m 13s
fuzz	28m 56s
build-cfg-flags / build (self-hosted, 1.75.0)	18m 54s
linting	2m 34s
rustfmt	15s
build-bindings / build (self-hosted, 1.75.0)	23m 46s
build-workspace / build (self-hosted, 1.75.0)	18m 35s
build-features / build (self-hosted, 1.75.0)	28m 17s
build-nostd / build (self-hosted, 1.75.0)	16m 22s
build-sync / build (self-hosted, 1.75.0)	9m 52s
coverage	-1s
notify-failure	0s
	3h 20m 11s

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