Update sysutils/rpi-firmware to 1.20230405

From: ykla <yklaxds_at_gmail.com>
Date: Sun, 30 Jul 2023 14:15:01 UTC

I try to update  sysutils/rpi-firmware to 1.20230405.

The author of pscimon, gonzoua, has deleted the project. I pulled the
project from the ports cache and stored it in FreeBSD-Ask:pscimon.

see also https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272807

Tested successfully on Raspberry Pi 4B 8GB v1.5.

Could you please help me commit it to ports?