Chore: add default for unwrap #4327

Job	Run time
openraft-test-bench (nightly)	1m 1s
test-crate-tests (stable, 0)	3m 12s
test-crate-tests (nightly, 30)	3m 13s
cluster-benchmark (cluster_benchmark)	47s
test-crate-tests (nightly, 0, single-term-leader)	3m 5s
openraft-feature-test (nightly)	54s
rt-monoio	44s
openraft-feature-test (nightly, serde)	54s
stores (stores/memstore)	52s
openraft-feature-test (nightly, serde,singlethreaded)	52s
test-crate-openraft (stable)	46s
Build (nightly, bench,serde,bt,singlethreaded)	52s
test-crate-openraft (nightly)	52s
lint	4m 3s
examples (stable, memstore)	50s
examples (stable, rocksstore)	5m 55s
tests-feature-test (nightly)	3m 3s
examples (stable, raft-kv-memstore)	2m 36s
tests-feature-test (nightly, single-term-leader)	3m 4s
examples (stable, raft-kv-memstore-grpc)	2m 5s
examples (stable, raft-kv-memstore-network-v2)	1m 7s
examples (stable, raft-kv-memstore-opendal-snapshot-data)	1m 55s
examples (stable, raft-kv-memstore-singlethreaded)	50s
examples (stable, raft-kv-rocksdb)	7m 43s
examples (nightly, memstore)	1m 7s
examples (nightly, rocksstore)	10m 56s
examples (nightly, raft-kv-memstore)	2m 30s
examples (nightly, raft-kv-memstore-grpc)	1m 44s
examples (nightly, raft-kv-memstore-network-v2)	1m 11s
examples (nightly, raft-kv-memstore-opendal-snapshot-data)	1m 33s
examples (nightly, raft-kv-memstore-singlethreaded)	1m 18s
examples (nightly, raft-kv-rocksdb)	11m 30s
	1h 23m 4s

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