Investigate alternate compression for OTA images

[adeebshihadeh]

OTA images are currently compressed with xz, which is slow to both compress and decompress.

agnos-builder/scripts/package_ota.py

Line 23 in 2c6b35d

def compress(fin, fout) -> None:

We should try all the latest compression tools with various settings to evaluate if we can get any improvements on compression, decompression, and size. Here's an example from a recent openpilot project:

Note that we'll have to roll out compression changes carefully since the openpilot updater needs to handle the new compression.