chore(crc32c): replace crc32c with google-crc32c dependency

[jhamman]

This PR replaces the crc32c dependency with the google-crc32c package. The behavior of the codec is not expected to have changed.

Closes zarr-developers/zarr-python#3510

TODO:

• Unit tests and/or doctests in docstrings
• Tests pass locally
• Docstrings and API docs for any new/modified user-facing classes and functions
• Changes documented in docs/release.rst
• Docs build locally
• GitHub Actions CI passes
• Test coverage to 100% (Codecov passes)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.37%. Comparing base (b543298) to head (61d7e14).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #792      +/-   ##
==========================================
+ Coverage   90.33%   90.37%   +0.04%     
==========================================
  Files          64       64              
  Lines        2804     2817      +13     
==========================================
+ Hits         2533     2546      +13     
  Misses        271      271              

Files with missing lines	Coverage Δ
numcodecs/checksum32.py	100.00% <100.00%> (ø)
numcodecs/tests/test_checksum32.py	100.00% <100.00%> (ø)

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[jhamman]

The failing tests here are due to a nasty circular dependency in our test suite with respect to zarr-python. I don't believe there is anything that can be done about that here.