Add pre-commit hooks adapted from astropy

[lpsinger]

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[codecov]

Codecov Report

Attention: Patch coverage is 96.36364% with 4 lines in your changes missing coverage. Please review.

Project coverage is 96.60%. Comparing base (c606e35) to head (49c5834).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
astropy_healpix/bench.py	96.77%	1 Missing ⚠️
astropy_healpix/core.py	97.77%	1 Missing ⚠️
astropy_healpix/high_level.py	93.33%	1 Missing ⚠️
astropy_healpix/utils.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #245   +/-   ##
=======================================
  Coverage   96.60%   96.60%           
=======================================
  Files           6        6           
  Lines         501      501           
=======================================
  Hits          484      484           
  Misses         17       17           

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