chore(deps): update flake.lock

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/f7b3c975cf067e56e7cda6cb098ebe3fb4d74ca2' (2024-03-01)
  → 'github:hercules-ci/flake-parts/9126214d0a59633752a136528f5f3b9aa8565b7d' (2024-04-01)
• Updated input 'flake-parts/nixpkgs-lib':
    'github:NixOS/nixpkgs/1536926ef5621b09bba54035ae2bb6d806d72ac8?dir=lib' (2024-02-29)
  → 'github:NixOS/nixpkgs/d8fe5e6c92d0d190646fb9f1056741a229980089?dir=lib' (2024-03-29)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/219951b495fc2eac67b1456824cc1ec1fd2ee659' (2024-03-28)
  → 'github:nixos/nixpkgs/e38d7cb66ea4f7a0eb6681920615dfcc30fc2920' (2024-04-06)
• Updated input 'system-manager':
    'github:numtide/system-manager/644358d6a37c47352448c89139a92d8520b22f2a' (2024-03-25)
  → 'github:numtide/system-manager/1fb50286d0ee138f67c4b894270821075f648745' (2024-04-01)
• Updated input 'system-manager/crane':
    'github:ipetkov/crane/880573f80d09e18a11713f402b9e6172a085449f' (2024-03-24)
  → 'github:ipetkov/crane/ada0fb4dcce4561acb1eb17c59b7306d9d4a95f3' (2024-03-29)
• Updated input 'system-manager/pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/e611897ddfdde3ed3eaac4758635d7177ff78673' (2024-03-20)
  → 'github:cachix/pre-commit-hooks.nix/9fc61b5eb0e50fc42f1d358f5240722907b79726' (2024-03-31)
• Updated input 'system-manager/rust-overlay':
    'github:oxalica/rust-overlay/8a8e3ea9a9a4b2225cb5e33e07c3a337f820168c' (2024-03-25)
  → 'github:oxalica/rust-overlay/3f46a51b47f56c24b4d7e8db8fb8e73118923f96' (2024-04-01)
• Updated input 'system-manager/treefmt-nix':
    'github:numtide/treefmt-nix/7ee5aaac63c30d3c97a8c56efe89f3b2aa9ae564' (2024-03-18)
  → 'github:numtide/treefmt-nix/1810d51a015c1730f2fe05a255258649799df416' (2024-03-30)