Allow switching off daemon if no running runner doc

[gpetretto]

Fixing a potential issue for the upgrade procedure, signaled in #211 (comment)
Now it is possible to stop the runner even if there is no running_runner document.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.32%. Comparing base (1add6b9) to head (984e395).
Report is 5 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #240      +/-   ##
===========================================
+ Coverage    71.15%   71.32%   +0.17%     
===========================================
  Files           49       49              
  Lines         6677     6703      +26     
  Branches      1074     1081       +7     
===========================================
+ Hits          4751     4781      +30     
+ Misses        1559     1557       -2     
+ Partials       367      365       -2     

Files with missing lines	Coverage Δ
src/jobflow_remote/cli/runner.py	69.27% <100.00%> (+4.37%)	⬆️
src/jobflow_remote/config/base.py	83.47% <100.00%> (+0.07%)	⬆️
src/jobflow_remote/jobs/daemon.py	68.50% <100.00%> (+0.60%)	⬆️
src/jobflow_remote/jobs/jobcontroller.py	80.00% <100.00%> (+0.05%)	⬆️
src/jobflow_remote/jobs/runner.py	77.61% <100.00%> (+0.21%)	⬆️

[davidwaroquiers]

Ok for me. Just, do we need a test here ?

[davidwaroquiers]

All good to me! Just 2 typos.