Feature: feature flag `generic-snapshot-data` #3095

Job	Run time
openraft-test-bench (nightly)	54s
openraft-test (stable, 0)	3m 16s
openraft-test (nightly, 30)	3m 19s
openraft-test (nightly, 0, single-term-leader)	3m 8s
stores (memstore)	51s
Build (nightly, bench,serde,bt,singlethreaded)	47s
stores (rocksstore)	6m 27s
stores (rocksstore-compat07)	6m 18s
cluster-benchmark (cluster_benchmark)	43s
stores (sledstore)	1m 4s
examples (stable, raft-kv-memstore)	2m 26s
examples (stable, raft-kv-memstore-general-snapshot-data)	58s
lint	7m 16s
examples (stable, raft-kv-memstore-singlethreaded)	56s
examples (stable, raft-kv-rocksdb)	7m 50s
external-stores (stores/rocksstore-v2)	6m 7s
examples (nightly, raft-kv-memstore)	2m 14s
examples (nightly, raft-kv-memstore-general-snapshot-data)	1m 17s
openraft-feature-test (nightly)	48s
tests-feature-test (nightly)	2m 55s
examples (nightly, raft-kv-memstore-singlethreaded)	1m 19s
openraft-feature-test (nightly, serde)	49s
tests-feature-test (nightly, single-term-leader)	2m 51s
examples (nightly, raft-kv-rocksdb)	7m 28s
openraft-feature-test (nightly, single-term-leader)	49s
tests-feature-test (nightly, loosen-follower-log-revert)	2m 52s
openraft-feature-test (nightly, single-term-leader,serde,singlethreaded)	51s
	1h 16m 33s

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