chore(flake): update flake.lock

[github-actions[bot]]

Automated changes by the update-flake-lock GitHub Action.

Flake lock file updates:

• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/ad57eef4ef0659193044870c731987a6df5cf56b?narHash=sha256-SzDKxseEcHR5KzPXLwsemyTR/kaM9whxeiJohbL04rs%3D' (2024-05-29)
  → 'github:NixOS/nixpkgs/57610d2f8f0937f39dbd72251e9614b1561942d8?narHash=sha256-yZKhxVIKd2lsbOqYd5iDoUIwsRZFqE87smE2Vzf6Ck0%3D' (2024-05-31)
• Updated input 'nixvim':
    'github:nix-community/nixvim/e58380adcddc450eb08c37760a3f282077386d19?narHash=sha256-CnMCPxY9GfBAONN3BoWmPc36QV5Sv9uZFKH9VkE5KJI%3D' (2024-06-01)
  → 'github:nix-community/nixvim/b7a8b0319098fdbaa719ef4dc375337ec4543c6e?narHash=sha256-8enVHsN7hLn1hPkY1U5Cfr3rzij4FsWRUx4jjHUHZQE%3D' (2024-06-03)
• Updated input 'oldNixpkgs':
    'github:NixOS/nixpkgs/25cf937a30bf0801447f6bf544fc7486c6309234?narHash=sha256-Av0UWCCiIGJxsZ6TFc%2BOiKCJNqwoxMNVYDBChmhjNpo%3D' (2024-05-29)
  → 'github:NixOS/nixpkgs/a62e6edd6d5e1fa0329b8653c801147986f8d446?narHash=sha256-oamiKNfr2MS6yH64rUn99mIZjc45nGJlj9eGth/3Xuw%3D' (2024-05-31)

Running GitHub Actions on this PR

GitHub Actions will not run workflows on pull requests which are opened by a GitHub Action.

To run GitHub Actions workflows on this PR, run:

git branch -D update_flake_lock_action
git fetch origin
git checkout update_flake_lock_action
git commit --amend --no-edit
git push origin update_flake_lock_action --force