consider pulling in FRR extension

[smira]

See https://github.com/abckey/frr-talos-extension

[maxpain]

Use case:
https://www.youtube.com/watch?v=7prUnxglfCk

[maxpain]

siderolabs/talos#11126

[xvzf]

Any news on this folks?

[maxpain]

#821

[soulwhisper]

This might not be a extension, but also a workaround. Check https://github.com/metallb/frr-k8s

[xvzf]

Hi folks 👋

As already hinted to @rothgar , we'd like to contribute a simplified version of our bird2 system extension.
I'll run some tests and open up a PR

[xvzf]

PR is here: #911
This does not add frr because we are using bird2, but from a functional PoV it's the same