ci: compress LAVA rootfs with zstd instead of gzip
Visible size reduction and minor performance improvement at no cost.
rootfs measure:
2022-07-27 11:15:16.235268: 475MB downloaded in 111.59s (4.26MB/s)
2022-07-27 15:07:40.984857: 425MB downloaded in 85.57s (4.97MB/s)
So let say approx. 95s vs 85s if we assume 5MB/s, which can bring us 10s speedup... EDIT: Don't count the fact that compression and decompression are faster than with gzip.
Signed-off-by: David Heidelberg david.heidelberg@collabora.com
Edited by David Heidelberg