[dev] FRR Release 10.4.0

Dear FRR Community, We are pleased to announce FRR release 10.4.0. Release notes are available at: https://frrouting.org/release/10.4.0/ https://github.com/FRRouting/frr/releases/tag/frr-10.4.0 Please let us know if you see any issues. Cheers, The FRR Development Team!