It'd be nice to reduce the footprint of our decompression stack to only the decompression schemes Python packaging (widely) uses. One that we could potentially eliminate is xz/lzma, since only a tiny minority of Python wheel distributions (should) be using it.

This would technically be a breaking change. However, it should be a marginal one, since PyPI itself doesn't allow any ZIP compression schemes other than DEFLATE and STORE (and eventually zstd):

https://github.com/pypi/warehouse/blob/6ba4eb2cb1482403a64805fc0d1839e4f36d1bb3/warehouse/forklift/legacy.py#L313

• Remove non-PEP 625 sdist support
  • Deprecation: Deprecate some non-PEP 625 source distributions #17467
• Remove support for bz/lzma in ZIPs
  • Deprecation: Deprecate unexpected ZIP compression methods #17946
  • Removal: Remove bz/lzma/xz support from ZIP handling #18927
• Remove any lingering direct support for bz/lzma/xz, e.g. direct archive installations