Dep: Require tokio 1.22 for WeakUnboundedSender #3722

Job	Run time
Build (nightly, bench,serde,bt,singlethreaded)	50s
stores (stores/memstore)	51s
stores (stores/rocksstore)	6m 13s
stores (stores/sledstore)	1m 3s
lint	12m 15s
cluster-benchmark (cluster_benchmark)	45s
openraft-feature-test (nightly)	53s
openraft-feature-test (nightly, serde)	56s
openraft-test (stable, 0)	3m 22s
openraft-test-bench (nightly)	58s
openraft-feature-test (nightly, single-term-leader)	53s
openraft-test (nightly, 30)	3m 21s
openraft-feature-test (nightly, single-term-leader,serde,singlethreaded)	52s
openraft-test (nightly, 0, single-term-leader)	3m 14s
tests-feature-test (nightly)	2m 59s
tests-feature-test (nightly, single-term-leader)	2m 56s
tests-feature-test (nightly, loosen-follower-log-revert)	2m 54s
examples (stable, memstore)	37s
examples (stable, raft-kv-memstore)	2m 23s
examples (stable, raft-kv-memstore-network-v2)	1m 1s
examples (stable, raft-kv-memstore-opendal-snapshot-data)	1m 29s
examples (stable, raft-kv-memstore-singlethreaded)	1m 2s
examples (stable, raft-kv-rocksdb)	8m 8s
examples (nightly, memstore)	56s
examples (nightly, raft-kv-memstore)	2m 12s
examples (nightly, raft-kv-memstore-network-v2)	1m 19s
examples (nightly, raft-kv-memstore-opendal-snapshot-data)	1m 51s
examples (nightly, raft-kv-memstore-singlethreaded)	1m 18s
examples (nightly, raft-kv-rocksdb)	12m 37s
	1h 20m 8s

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