Replacing an updatable prefixed vector index doesn't work correctly

[vitalif]

When replacing an updatable prefixed vector index with ydb table index rename table --index-name new_index --to old_index --replace, the __ydb_id_sequence on the indexImplPrefixTable isn't moved and queries stop working here: https://github.com/ydb-platform/ydb/blob/main/ydb/core/kqp/gateway/kqp_metadata_loader.cpp#L218 when checking columnDesc.IsDefaultFromSequence() and not finding the sequence.

It should be fixed.