sysutils/cpu-microcode-amd: Update to 2023-10-19 snapshot

Commit to the Linux Firmware repository:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=06afd7f939c5b245b2af9e0fee13026f2aaf77fa

Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D42573