Replace zstandard with backport.zstd

[william-billaud]

see fox-it/dissect.hypervisor#68 / fox-it/dissect.target#1380 for context.
TLDR : In Python 3.14 zstd as been added to standard library (pep-0784), author as backported the lib.

[william-billaud]

TLDR of Rogdham/backports.zstd#58

(backport|compression).zstd and zstandard differ on how corrupted/faulty data are handled.

When an error occur zstandard silently ignore the error and return the decompressed data.

(backport|compression).zstd raise an error.

As btrfs pad data with "0x0" (in order to obtain blocks of at least sector sizes), this padding is considered a corrupted frame and the decompress function raise an error.

Not sure if this will be fixed in standard lib, but

• Option 1 : manually loop over each frame using a ZstdDecompressor object and stop when stream is fully read/an error is raised.
• Option 2 : keep zstandard.