doc/release-notes: add frr 10.0 BGP

Signed-off-by: Markus Theil <theil.markus@gmail.com>

Changed files
+2
nixos
doc
manual
release-notes
+2
nixos/doc/manual/release-notes/rl-2405.section.md
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- `services.archisteamfarm` no longer uses the abbreviation `asf` for its state directory (`/var/lib/asf`), user and group (both `asf`). Instead the long name `archisteamfarm` is used.
Configurations with `system.stateVersion` 23.11 or earlier, default to the old stateDirectory until the 24.11 release and must either set the option explicitly or move the data to the new directory.
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- `frr` was updated to 10.0, which introduces the default of `enforce-first-as` for BGP. Please disable again if needed.
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- `services.aria2.rpcSecret` has been replaced with `services.aria2.rpcSecretFile`.
This was done so that secrets aren't stored in the world-readable nix store.
To migrate, you will have to create a file with the same exact string, and change