Fix deprecation warnings with libpqxx usage

Dependencies

• [2] JO3DDLJM hydra-evaluator: deal in jobset IDs
• [3] K6CGDFOT hydra-evaluator: make the logic of the scheduler easier to read
• [4] UANT7MOV hydra-evaluator: add a 'ONE_AT_A_TIME' evaluator style
• [*] 4YCF3KBG Concurrent hydra-evaluator

Change contents

• replacement in src/hydra-evaluator/hydra-evaluator.cc at line 236
  [3.1611]→[3.1611:1667](∅→∅)
  − auto evaluation_res = txn.parameterized
  [3.1611]

  [3.1667]
  + auto evaluation_res = txn.exec_params
• replacement in src/hydra-evaluator/hydra-evaluator.cc at line 239
  [2.2511]→[3.1777:1826](∅→∅),[3.1777]→[3.1777:1826](∅→∅),[3.1826]→[2.2512:2547](∅→∅),[2.2547]→[3.1903:1930](∅→∅),[3.1903]→[3.1903:1930](∅→∅)
  − "order by id desc limit 1")

  − (jobset.name.id)

  − .exec();
  [2.2511]

  [3.1930]
  + "order by id desc limit 1"

  + ,jobset.name.id

  + );
• replacement in src/hydra-evaluator/hydra-evaluator.cc at line 252
  [3.2312]→[3.2312:2374](∅→∅)
  − auto unfinished_build_res = txn.parameterized
  [3.2312]

  [3.2374]
  + auto unfinished_build_res = txn.exec_params
• replacement in src/hydra-evaluator/hydra-evaluator.cc at line 258
  [3.2644]→[3.2644:2738](∅→∅)
  − " limit 1")

  − (evaluation_id)

  − .exec();
  [3.2644]

  [3.2738]
  + " limit 1"

  + ,evaluation_id

  + );