Zlib-ng

`2.1.5 <https://github.com/zlib-ng/zlib-ng/releases/tag/2.1.5>`_.

+ Escape GIL for adler32 and crc32 functions.

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+ Fix a bug where flushing in threaded mode did not write the data to the
output file.
+ Threaded reading and writing do no longer block exiting when an exception
occurs in the main thread.

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+ Wheels are now build for MacOS arm64 architectures.
+ Fix a bug where READ and WRITE in zlib_ng.gzip_ng were inconsistent with the
values in gzip on Python 3.13
+ Small simplifications to the ``gzip_ng.compress`` and ``gzip_ng.decompress``
functions, which should lead to less overhead.

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+ Fix a bug where files larger than 4GB could not be decompressed.