flake.lock: Update

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/e5d10a24b66c3ea8f150e47dfdb0416ab7c3390e?narHash=sha256-yzcRNDoyVP7%2BSCNX0wmuDju1NUCt8Dz9%2BlyUXEI0dbI%3D' (2024-05-02)
  → 'github:hercules-ci/flake-parts/2a55567fcf15b1b1c7ed712a2c6fadaec7412ea8?narHash=sha256-iKzJcpdXih14qYVcZ9QC9XuZYnPc6T8YImb6dX166kw%3D' (2024-06-01)
• Updated input 'flake-parts/nixpkgs-lib':
    'https://github.com/NixOS/nixpkgs/archive/50eb7ecf4cd0a5756d7275c8ba36790e5bd53e33.tar.gz?narHash=sha256-QBx10%2Bk6JWz6u7VsohfSw8g8hjdBZEf8CFzXH1/1Z94%3D' (2024-05-02)
  → 'https://github.com/NixOS/nixpkgs/archive/eb9ceca17df2ea50a250b6b27f7bf6ab0186f198.tar.gz?narHash=sha256-lIbdfCsf8LMFloheeE6N31%2BBMIeixqyQWbSr2vk79EQ%3D' (2024-06-01)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/e4e7a43a9db7e22613accfeb1005cca1b2b1ee0d?narHash=sha256-FCi3R1MeS5bVp0M0xTheveP6hhcCYfW/aghSTPebYL4%3D' (2024-05-11)
  → 'github:nixos/nixpkgs/6132b0f6e344ce2fe34fc051b72fb46e34f668e0?narHash=sha256-7R2ZvOnvd9h8fDd65p0JnB7wXfUvreox3xFdYWd1BnY%3D' (2024-05-30)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/8eb8671512cb0c72c748058506e50c54fb5d8e2b?narHash=sha256-nSUFcUqyTQQ/aYFIB05mpCzytcKvfKMy3ZQAe0fP26A%3D' (2024-05-11)
  → 'github:oxalica/rust-overlay/ab69b67fac9a96709fbef0b899db308ca714a120?narHash=sha256-4gVhbC%2BNjSQ4c6cJvJGNCI1oTcD%2B8jRRNAnOF9faGCE%3D' (2024-06-01)