update labeler to v5

[zacharyburnett]

follow-on to #1231 and #1332

Checklist

• added entry in CHANGES.rst under the corresponding subsection
• updated relevant tests
• updated relevant documentation
• updated relevant milestone(s)
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below. How to run regression tests on a PR

[braingram]

Do you want to hold off on #1332 in favor of this?

[zacharyburnett]

Do you want to hold off on #1332 in favor of this?

That should work!

[braingram]

I opened a test PR against the source branch (which should trigger the run with the updated config and labeler v5). When you have a chance would you allow the CI to run on that PR?
zacharyburnett#2

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.05%. Comparing base (73e8b77) to head (57425f5).
Report is 185 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1333   +/-   ##
=======================================
  Coverage   79.05%   79.05%           
=======================================
  Files         117      117           
  Lines        7846     7846           
=======================================
  Hits         6203     6203           
  Misses       1643     1643           

Flag	Coverage Δ		*Carryforward flag
nightly	63.36% <ø> (ø)		Carriedforward from 73e8b77

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[braingram]

Test PR worked! Thanks for updating the config file.