chore(flake.lock): Update all Flake inputs (2025-07-06)

  ```
• Updated input 'devenv':
    'github:cachix/devenv/9b542934395151747a97d8dec86b2e280dfbc197?narHash=sha256-f8qHvc48jDb/CP2x9/5EFnER2kjw5qCZrCHQQq9aRqg%3D' (2025-07-04)
  → 'github:cachix/devenv/e33639c0535a8f18db417fd9fb36f180e8a7d27e?narHash=sha256-0%2B3JCO%2B22Ud2395GeEnp%2BWZedC3f2B3KspH5t%2B1AUX4%3D' (2025-07-05)
• Updated input 'home-manager-unstable':
    'github:nix-community/home-manager/83f978812c37511ef2ffaf75ffa72160483f738a?narHash=sha256-3q35cq6BPuwIRL3IoVKYPc72r3OleeuRyf4YAPjEqzA%3D' (2025-07-04)
  → 'github:nix-community/home-manager/8b0180dde1d6f4cf632e046309e8f963924dfbd0?narHash=sha256-qBGNn7T/zOgUDQTo/RM/D2oxMkB2x36j3ajvpVanEVs%3D' (2025-07-06)
• Updated input 'microvm':
    'github:astro/microvm.nix/fd9f5dba1ffee5ad6f29394b2a9e4c66c1ce77dc?narHash=sha256-17EYMeY5v8KRk9HW6Z4dExY8Wg4y/zM2eM2wbbx%2BvMs%3D' (2025-06-19)
  → 'github:astro/microvm.nix/9d3d845ccb1a3f81747d027e95b110d4637468d0?narHash=sha256-MuaFFGHdShvGdHKrd3PUI2om%2BnjixdG/1dGlglRdK8Q%3D' (2025-07-05)
• Updated input 'microvm/spectrum':
    'git+https://spectrum-os.org/git/spectrum?ref=refs/heads/main&rev=d927e78530892ec8ed389e8fae5f38abee00ad87' (2025-05-10)
  → 'git+https://spectrum-os.org/git/spectrum?ref=refs/heads/main&rev=37c8663fab86fdb202fece339ef7ac7177ffc201' (2025-06-30)
• Updated input 'nixos-2505':
    'github:NixOS/nixpkgs/34627c90f062da515ea358360f448da57769236e?narHash=sha256-M5KgdpVBVcW4HRVq9/OSRbrxlwsQ1ogEKqnvzsClDqU%3D' (2025-07-02)
  → 'github:NixOS/nixpkgs/7a732ed41ca0dd64b4b71b563ab9805a80a7d693?narHash=sha256-u7ubvtxdTnFPpV27AHpgoKn7qHuE7sgWgza/1oj5nzA%3D' (2025-07-03)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/3016b4b15d13f3089db8a41ef937b13a9e33a8df?narHash=sha256-P/SQmKDu06x8yv7i0s8bvnnuJYkxVGBWLWHaU%2Btt4YY%3D' (2025-06-30)
  → 'github:NixOS/nixpkgs/5c724ed1388e53cc231ed98330a60eb2f7be4be3?narHash=sha256-xVNy/XopSfIG9c46nRmPaKfH1Gn/56vQ8%2B%2BxWA8itO4%3D' (2025-07-04)
```

Author: beep boop