Prepare for v4.4.0

[isaacbrodsky]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build #592

Details

• 24 of 24 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+2.5%) to 96.954%

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Totals
Change from base Build #583:	2.5%
Covered Lines:	559
Relevant Lines:	570

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💛 - Coveralls

[ajfriend]

Not at all blocking for this PR, but I wonder if it would be useful to have a function that returns H3_ERROR_END in the C lib that the bindings could call.

For the Python bindings, Cython can't read the H3ErrorCodes struct directly and we need to encode it by hand in https://github.com/uber/h3-py/blob/f9c1a944d1be1c78e713939c00a70c60dd5219bc/src/h3/_cy/h3lib.pxd#L15-L36, so it can be invalid if I forget to update it. A helper function that returns H3_ERROR_END would provide a way to do a more robust check for that scenario.