TST: Use photutils nightly wheel

[pllim]

astropy/photutils#1834

No need for change log because this is not user-facing change.

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.52%. Comparing base (5b214b4) to head (b2f39ac).
Report is 280 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1363   +/-   ##
=======================================
  Coverage   78.52%   78.52%           
=======================================
  Files         117      117           
  Lines        7833     7833           
=======================================
  Hits         6151     6151           
  Misses       1682     1682           

Flag	Coverage Δ		*Carryforward flag
nightly	62.24% <ø> (ø)		Carriedforward from 5b214b4

*This pull request uses carry forward flags. Click here to find out more.

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[nden]

Thanks @pllim !