Broadcom NICs down after PVE 8.2 (Kernel 6.8)

We had some issues with some broadcom nics going down after update to 6.8

Workaround: NICs go up if you do a service networking restart
FIX: Update Broadcom Firmware to latest firmware and blacklist their "beautiful" infiniband-driver

This will update ALL YOUR Broadcom-Network Cards to their latest firmware (live) (but reboot needed after it):

apt install unzip
cat << 'EOF' > bcm-nic-update.sh
wget...

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