Obtain status file lock when updating full status

[shanemcd]

We are randomly seeing errors that look like this:

2021-05-03 07:59:09,461 ERROR    [a40f6c03679040dc990455ce2422c80c] awx.main.tasks job 111 (running) Exception occurred while running task
Traceback (most recent call last):
  File "/var/lib/awx/venv/awx/lib64/python3.8/site-packages/awx/main/tasks.py", line 1427, in run
    res = receptor_job.run()
  File "/var/lib/awx/venv/awx/lib64/python3.8/site-packages/awx/main/tasks.py", line 2969, in run
    receptor_ctl.simple_command(f"work release {self.unit_id}")
  File "/var/lib/awx/venv/awx/lib64/python3.8/site-packages/receptorctl/socket_interface.py", line 72, in simple_command
    return self.read_and_parse_json()
  File "/var/lib/awx/venv/awx/lib64/python3.8/site-packages/receptorctl/socket_interface.py", line 51, in read_and_parse_json
    raise RuntimeError(text[7:])
RuntimeError: unlinkat /tmp/receptor/example.com/S4kPB890: directory not empty

[ghjm]

Before merging this I would want to go through the codebase for the dozen or so callers of this function, and make sure none of them touch the status lock inside their update function.

[shanemcd]

I was wrong. This does not fix the issue.

[shanemcd]

I think we actually want / need this now.