Doc: add change-log 0.9.17 #4120

Job	Run time
cluster-benchmark (cluster_benchmark)	47s
examples (stable, memstore)	41s
external-stores (stores/rocksstore-v2)	6m 18s
examples (stable, raft-kv-memstore)	2m 39s
lint	11m 45s
examples (stable, raft-kv-memstore-generic-snapshot-data)	51s
examples (stable, raft-kv-memstore-opendal-snapshot-data)	1m 12s
openraft-features (nightly, generic-snapshot-data)	55s
openraft-feature-test (nightly)	50s
examples (stable, raft-kv-memstore-singlethreaded)	57s
openraft-feature-test (nightly, serde)	56s
openraft-feature-test (nightly, single-term-leader)	53s
examples (stable, raft-kv-rocksdb)	8m 14s
openraft-test (stable, 0)	3m 21s
openraft-feature-test (nightly, single-term-leader,serde,singlethreaded)	55s
examples (nightly, memstore)	57s
openraft-test (nightly, 30)	3m 25s
examples (nightly, raft-kv-memstore)	2m 18s
openraft-test (nightly, 0, single-term-leader)	3m 14s
examples (nightly, raft-kv-memstore-generic-snapshot-data)	1m 5s
examples (nightly, raft-kv-memstore-opendal-snapshot-data)	1m 23s
openraft-test-bench (nightly)	1m 1s
examples (nightly, raft-kv-memstore-singlethreaded)	1m 11s
stores (memstore)	1m 2s
examples (nightly, raft-kv-rocksdb)	12m 30s
stores (rocksstore)	6m 0s
Build (nightly, bench,serde,bt,singlethreaded)	53s
stores (sledstore)	1m 6s
tests-feature-test (nightly)	2m 56s
tests-feature-test (nightly, single-term-leader)	2m 49s
tests-feature-test (nightly, loosen-follower-log-revert)	2m 56s
	1h 26m 0s

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