These appear to any Arch Linux users, especially those who have not installed these firmware modules. If you do not use hardware which uses these firmwares you can safely ignore this message. Currently, the only solution for suppressing warnings for wd719x and aic94xx modules is actually installing firmware packages for them.
That firmware file has not been released yet even though the driver for that devices has been added to the kernel. That just means that the driver will fail and the device will simply not work (same as kernel 5.10 where no driver was available)
module: qat_4xxx , I didn`t find a firmware for it.