[nixos-25.05] Update flake.lock & generated files

[nixvim-ci]

Root lockfile

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/3bcc93c5f7a4b30335d31f21e2f1281cba68c318?narHash=sha256-YWo57PL7mGZU7D4WeKFMiW4ex/O6ZolUS6UNBHTZfkI%3D' (2025-10-04)
  → 'github:NixOS/nixpkgs/5da4a26309e796daa7ffca72df93dbe53b8164c7?narHash=sha256-wSK%2B3UkalDZRVHGCRikZ//CyZUJWDJkBDTQX1%2BG77Ow%3D' (2025-10-09)

Dev lockfile

Flake lock file updates:

• Updated input 'dev-nixpkgs':
    'github:NixOS/nixpkgs/3bcc93c5f7a4b30335d31f21e2f1281cba68c318?narHash=sha256-YWo57PL7mGZU7D4WeKFMiW4ex/O6ZolUS6UNBHTZfkI%3D' (2025-10-04)
  → 'github:NixOS/nixpkgs/5da4a26309e796daa7ffca72df93dbe53b8164c7?narHash=sha256-wSK%2B3UkalDZRVHGCRikZ//CyZUJWDJkBDTQX1%2BG77Ow%3D' (2025-10-09)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/5eda4ee8121f97b218f7cc73f5172098d458f1d1?narHash=sha256-ySNJ008muQAds2JemiyrWYbwbG%2BV7S5wg3ZVKGHSFu8%3D' (2025-09-24)
  → 'github:numtide/treefmt-nix/761ae7aff00907b607125b2f57338b74177697ed?narHash=sha256-gq9rdocpmRZCwLS5vsHozwB6b5nrOBDNc2kkEaTXHfg%3D' (2025-10-10)

---

This PR was most recently updated by workflow run 18429548354.

You can re-run the update by going to the workflow's page or by using the gh command:

gh workflow run update.yml --ref nixos-25.05

If needed, you can also specify workflow inputs on the command line, using the -F --field, -f --raw-field, or --json flags.
See gh workflow run --help.