adding descheduled jobs the the Jobs API call

[Jeremydupras]

Description

Description
The Jobs REST API currently only lists the scheduled jobs which have the fields "descheduled = false and enabled = true". This will allow the user to see all jobs in job scheduler whether or not they are scheduled in both cluster wide call and by_node call.

There is no difference in the API call. The differences can be seen in the Descheduled and Enabled Fields. Additionally, "last_execution_time", "last_expected_execution_time", and "next_expected_execution_time" are all set to null values when the job is set to enables = false. See the example JSON output below.

Lastly, when a job is deleted it is removed the scheduledjobs data structure and the corresponding lock is removed regardless of the jobs enabled status.

{
  "jobs": [
    {
      "job_type": "scheduler_sample_extension",
      "job_id": "jobid2",
      "index_name": ".scheduler_sample_extension",
      "name": "sample-job-it",
      "descheduled": true,
      "enabled": false,
      "enabled_time": "1970-07-23T01:37:43.063Z",
      "last_update_time": "1970-07-23T01:37:43.063Z",
      "last_execution_time": "none",
      "last_expected_execution_time": "none",
      "next_expected_execution_time": "none",
      "schedule": {
        "type": "interval",
        "start_time": "1970-07-23T01:37:43.063Z",
        "interval": 1,
        "unit": "Minutes",
        "delay": "none"
      },
      "lock_duration": 10,
      "jitter": "none"
    }
  ],
  "failures": [],
  "total_jobs": 1
}

Check List

• New functionality includes testing.
• New functionality has been documented.
• API changes companion pull request created.
• Commits are signed per the DCO using --signoff.
• Public documentation issue/PR created.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[codecov]

Codecov Report

❌ Patch coverage is 7.24638% with 64 lines in your changes missing coverage. Please review.
✅ Project coverage is 31.29%. Comparing base (edeb3a3) to head (21ffe7d).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...nsport/action/TransportGetScheduledInfoAction.java	0.00%	64 Missing ⚠️

❌ Your project status has failed because the head coverage (31.29%) is below the target coverage (75.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #806      +/-   ##
============================================
- Coverage     31.43%   31.29%   -0.14%     
+ Complexity      150      148       -2     
============================================
  Files            34       34              
  Lines          1527     1521       -6     
  Branches        137      137              
============================================
- Hits            480      476       -4     
+ Misses         1010     1009       -1     
+ Partials         37       36       -1     

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