flake.lock: Update

Flake lock file updates:

• Updated input 'emacs-overlay':
    'github:nix-community/emacs-overlay/37908db8f6ce22f6db7728c4622d4d02f9ff6d70?narHash=sha256-POfb3Sj4nfXtKwOcVwj76WbM5SbCuiC1wrsbuhaB0mY%3D' (2025-06-25)
  → 'github:nix-community/emacs-overlay/c5cc6bc833e686b5477e1a7054c5a0ee3039d413?narHash=sha256-Z0s5KRmigd6doImx6Kh4GRP/hlY8jMtT8KC1mqcPHv4%3D' (2025-06-28)
• Updated input 'emacs-overlay/nixpkgs':
    'github:NixOS/nixpkgs/4b1164c3215f018c4442463a27689d973cffd750?narHash=sha256-Z0djmTa1YmnGMfE9jEe05oO4zggjDmxOGKwt844bUhE%3D' (2025-06-24)
  → 'github:NixOS/nixpkgs/30e2e2857ba47844aa71991daa6ed1fc678bcbb7?narHash=sha256-krGXKxvkBhnrSC/kGBmg5MyupUUT5R6IBCLEzx9jhMM%3D' (2025-06-27)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/c7ab75210cb8cb16ddd8f290755d9558edde7ee1?narHash=sha256-kMhs%2BYzV4vPGfuTpD3mwzibWUE6jotw5Al2wczI0Pv8%3D' (2025-06-22)
  → 'github:nixos/nixpkgs/a676066377a2fe7457369dd37c31fd2263b662f4?narHash=sha256-zW/OFnotiz/ndPFdebpo3X0CrbVNf22n4DjN2vxlb58%3D' (2025-06-26)
• Updated input 'nur':
    'github:nix-community/NUR/00ca473157cf7b9cf9b19e8e0bd0c509b5ec391a?narHash=sha256-ryJ/tjeahYqoW%2BaGiQdRaeF1PLXUAn0C2aMfZsp5lu4%3D' (2025-06-25)
  → 'github:nix-community/NUR/c3c9ee3b26349abe162df39499ec587f453ce089?narHash=sha256-aaNJgaEXYMsdmLG38YyCO0eZdTf49Cj0TZsW4gpn9jg%3D' (2025-06-28)
• Updated input 'nur/nixpkgs':
    'github:nixos/nixpkgs/4b1164c3215f018c4442463a27689d973cffd750?narHash=sha256-Z0djmTa1YmnGMfE9jEe05oO4zggjDmxOGKwt844bUhE%3D' (2025-06-24)
  → 'github:nixos/nixpkgs/30e2e2857ba47844aa71991daa6ed1fc678bcbb7?narHash=sha256-krGXKxvkBhnrSC/kGBmg5MyupUUT5R6IBCLEzx9jhMM%3D' (2025-06-27)
• Updated input 'stylix':
    'github:danth/stylix/2a5b25b517077e0eb2204075974045948effb6e1?narHash=sha256-d16XwpYRR4ocLFvh6TcrNdSZ6fsmHWJ%2BhpmwYhT2iJU%3D' (2025-06-25)
  → 'github:danth/stylix/af5c40656af5f9ca4c7e05860c8ff5c9f2f09a66?narHash=sha256-L0svzHrQB9DHlYWdX4J9UQ8cERiYJTeNzZLHH7vyo1Y%3D' (2025-06-28)

Author: github-actions[bot]