Feature: Retrieve Key Log IDs via `RaftLogReader::get_key_log_ids()` #4163

Job	Run time
cluster-benchmark (cluster_benchmark)	47s
lint	12m 14s
openraft-feature-test (nightly)	54s
examples (stable, memstore)	38s
openraft-feature-test (nightly, serde)	52s
openraft-test (stable, 0)	3m 32s
examples (stable, raft-kv-memstore)	2m 29s
openraft-feature-test (nightly, single-term-leader)	53s
openraft-test-bench (nightly)	59s
openraft-test (nightly, 30)	3m 29s
examples (stable, raft-kv-memstore-network-v2)	1m 0s
openraft-test (nightly, 0, single-term-leader)	3m 22s
openraft-feature-test (nightly, single-term-leader,serde,singlethreaded)	51s
examples (stable, raft-kv-memstore-opendal-snapshot-data)	1m 6s
examples (stable, raft-kv-memstore-singlethreaded)	52s
rt-monoio	44s
stores (stores/memstore)	55s
Build (nightly, bench,serde,bt,singlethreaded)	53s
examples (stable, raft-kv-rocksdb)	8m 21s
stores (stores/rocksstore)	6m 11s
tests-feature-test (nightly)	3m 5s
stores (stores/sledstore)	1m 1s
tests-feature-test (nightly, single-term-leader)	3m 2s
examples (nightly, memstore)	59s
tests-feature-test (nightly, loosen-follower-log-revert)	2m 59s
examples (nightly, raft-kv-memstore)	2m 20s
examples (nightly, raft-kv-memstore-network-v2)	1m 10s
examples (nightly, raft-kv-memstore-opendal-snapshot-data)	1m 25s
examples (nightly, raft-kv-memstore-singlethreaded)	1m 6s
examples (nightly, raft-kv-rocksdb)	12m 38s
	1h 20m 47s

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