Jobsets,JobsetInputs: use JSON

Dependencies

• [2] SJPEC375 Builds: add a nullable jobset_id foreign key to Jobsets.
• [3] 7XFHKDDO JobsetInputs: update schema to align with the API
• [*] X27GNHDV * Basic job info in the database.
• [*] IGR322YP sql: Generate models from postgresql

Change contents

• edit in src/lib/Hydra/Schema/JobsetInputs.pm at line 136
  [6.5260]

  [3.81]
  +

  + use JSON;
• edit in src/lib/Hydra/Schema/Jobsets.pm at line 378
  [2.1063]

  [2.1063]
  + use JSON;