Add a github cron job

[mwcraig]

We just got bit by a bug caused by a new release of photutils. Adding a cron job, which will include at least one test with the latest version of dependencies, should help catch this kind of thing in the future.

This does need to have one job added in tox, I think, that unpins photutils, or maybe runs against a dev version of photutils, before this can be merged

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.32%. Comparing base (b9bf579) to head (7798b15).
Report is 14 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #478   +/-   ##
=======================================
  Coverage   80.32%   80.32%           
=======================================
  Files          32       32           
  Lines        4067     4067           
=======================================
  Hits         3267     3267           
  Misses        800      800           

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[JuanCab]

Hard to review this, I see it is a cronjob. but the only lines recorded as changed in the test.yml just are the lines scheduling the job. Is the idea that you want this job to run every when new code hasn't been submitted (to trigger the code review)?

[mwcraig]

Yes, that would help catch things like the change in photutils...

[JuanCab]

OK, makes sense.