hydra-evaluator: reformat readJobsets query

Dependencies

• [2] 3A7HTJZP Merge branch 'master' into libpqxx_undeprecate
• [3] UANT7MOV hydra-evaluator: add a 'ONE_AT_A_TIME' evaluator style
• [4] 4YCF3KBG Concurrent hydra-evaluator
• [5] DKR2GXSA Update libpqxx usage to move away from deprecated API interactions.

Change contents

• replacement in src/hydra-evaluator/hydra-evaluator.cc at line 71
  [3.28]→[2.1:1](∅→∅),[2.1]→[3.150:316](∅→∅),[3.1527]→[3.150:316](∅→∅)
  −

  − ("select project, j.name, lastCheckedTime, triggerTime, checkInterval, j.enabled as jobset_enabled from Jobsets j join Projects p on j.project = p.name "
  [3.28]

  [2.2]
  + ("select project, j.name, lastCheckedTime, triggerTime, checkInterval, j.enabled as jobset_enabled "

  + "from Jobsets j "

  + "join Projects p on j.project = p.name "