Require dqsegdb2 1.2.1 to handle timeouts
dqsegdb2 <= 1.2.0 cannot handle the timeout
keyword when passed to query_segments
. This is due to be fixed in duncanmmacleod/dqsegdb2#59+ and released as part of %dqsegdb2 1.2.1 in duncanmmacleod/dqsegdb2.
This MR bumps the requirement to force >=1.2.1 to make sure that this works.