Fix bug leave group version stable-25-1-2 (#20455)

Author: a-serebryanskiy

ydb/core/kafka_proxy/actors/kafka_api_versions_actor.cpp

@@ -40,7 +40,7 @@ TApiVersionsResponseData::TPtr GetApiVersions() {
     AddApiKey<TFetchRequestData>(response->ApiKeys, FETCH, {.MaxVersion=3});
     AddApiKey<TJoinGroupRequestData>(response->ApiKeys, JOIN_GROUP, {.MaxVersion=9});
     AddApiKey<TSyncGroupRequestData>(response->ApiKeys, SYNC_GROUP, {.MaxVersion=3});
-    AddApiKey<TLeaveGroupRequestData>(response->ApiKeys, LEAVE_GROUP, {.MaxVersion=5});
+    AddApiKey<TLeaveGroupRequestData>(response->ApiKeys, LEAVE_GROUP, {.MaxVersion=2});
     AddApiKey<THeartbeatRequestData>(response->ApiKeys, HEARTBEAT, {.MaxVersion=4});
     AddApiKey<TFindCoordinatorRequestData>(response->ApiKeys, FIND_COORDINATOR, {.MaxVersion=0});
     AddApiKey<TOffsetCommitRequestData>(response->ApiKeys, OFFSET_COMMIT, {.MaxVersion=0});