Replace uint64_t with int64_t in vinyl *sn fields
Replace uint64_t with int64_t in vinyl *sn fields

Fixes #1705

rtsisyk/tarantool,mejedi/tarantool,rtsisyk/tarantool,rtsisyk/tarantool,mejedi/tarantool,mejedi/tarantool,mejedi/tarantool,rtsisyk/tarantool