minor optimization for get_response table, operation_id index

[botnumberseven]

During paranet sync process node execute a lot of queries like this (see below).

I've added index below and it helped to reduce time for these SELECT to complete, as well as resource consumption a bit.
ALTER TABLE get_response ADD INDEX idx_operation_id (operation_id ASC);

SELECT status, keyword
FROM get_response AS get_response
WHERE get_response.operation_id = 'ca68e1c5-63e0-4027-a4da-4585dffe62bd'