Can you please try to upgrade the firmware binary manually from upstream linux-firmware?
gc_11_5_0_mes_2.bin
Back up the old one in /lib/firmware/amdgpu and then replace with this one and rebuild your initramfs and reboot.
If the old one is compressed you’ll need to compress this one too.
When you’re rebooted check that debugfs file again to make sure that MES version has increased.