Add the option the expand the tasks when querying a job

[chkeita]

When querying the job currently, the result contains a summary of the task information.

"task_info": [
        {
            "state": "running",
            "task_id": "6ea695da-071c-4840-a1fd-eb2239df6649",
            "type": "generic_analysis"
        },
       ...
    ],

This work will add an option to expand the task information in the job to get the full information for each tasks.

AB#162890