flake.lock: Update

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/4524271976b625a4a605beefd893f270620fd751?narHash=sha256-%2BuWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw%3D' (2025-09-01)
  → 'github:hercules-ci/flake-parts/864599284fc7c0ba6357ed89ed5e2cd5040f0c04?narHash=sha256-TmWcdiUUaWk8J4lpjzu4gCGxWY6/Ok7mOK4fIFfBuU4%3D' (2025-10-20)
• Updated input 'home-manager':
    'github:nix-community/home-manager/c75fd8e300b79502b8eecdacd8a426b12fadb460?narHash=sha256-Efi3THvsIS6Qd97s52/PSSHWybDlSbtUZXP8l3AR9Ps%3D' (2025-09-28)
  → 'github:nix-community/home-manager/c3a5e5f0df6f53aa4b51adc0107796cc407c641c?narHash=sha256-Ij3H0qkzZ66X9934kH0JYoI3b/F2vamrDD9abT5Pi70%3D' (2025-10-20)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/e643668fd71b949c53f8626614b21ff71a07379d?narHash=sha256-NY3kSorgqE5LMm1LqNwGne3ZLMF2/ILgLpFr1fS4X3o%3D' (2025-09-24)
  → 'github:NixOS/nixpkgs/5e2a59a5b1a82f89f2c7e598302a9cacebb72a67?narHash=sha256-K5Osef2qexezUfs0alLvZ7nQFTGS9DL2oTVsIXsqLgs%3D' (2025-10-19)
• Updated input 'sops-nix':
    'github:Mic92/sops-nix/9ac51832c70f2ff34fcc97b05fa74b4a78317f9e?narHash=sha256-53VP3BqMXJqD1He1WADTFyUnpta3mie56H7nC59tSic%3D' (2025-09-28)
  → 'github:Mic92/sops-nix/9c9a9798be331ed3f4b2902933d7677d0659ee61?narHash=sha256-PwGzU3EOU65Ef1VvuNnVLie%2Bl%2BP0g/fzf/PGUG82KbM%3D' (2025-10-19)

Author: github-actions[bot]