flake: update inputs (#173)

Flake lock file updates:

• Updated input 'nixos-cosmic':
    'github:lilyinstarlight/nixos-cosmic/5da869bcef8e52966159cef1d360deea858133c0?narHash=sha256-HXHk6zl1m4YbwfChEFxAeYkVsn2498i006C%2BiPfx7iI%3D' (2025-01-14)
  → 'github:lilyinstarlight/nixos-cosmic/40534c1bc524aa8c433a7a30318d7e20bddb33fb?narHash=sha256-EPbAFUXgu3agihgA%2BMJlQe6J18SIEZ4cRm%2BzhNRbGfo%3D' (2025-01-16)
• Updated input 'nixos-cosmic/nixpkgs-stable':
    'github:NixOS/nixpkgs/635e887b48521e912a516625eee7df6cf0eba9c1?narHash=sha256-vH5mXxEvZeoGNkqKoCluhTGfoeXCZ1seYhC2pbMN0sg%3D' (2025-01-12)
  → 'github:NixOS/nixpkgs/9c6b49aeac36e2ed73a8c472f1546f6d9cf1addc?narHash=sha256-i/UJ5I7HoqmFMwZEH6vAvBxOrjjOJNU739lnZnhUln8%3D' (2025-01-14)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/ed4a395ea001367c1f13d34b1e01aa10290f67d6?narHash=sha256-jG/%2BMvjVY7SlTakzZ2fJ5dC3V1PrKKrUEOEE30jrOKA%3D' (2025-01-12)
  → 'github:NixOS/nixpkgs/eb62e6aa39ea67e0b8018ba8ea077efe65807dc8?narHash=sha256-uQ%2BNQ0/xYU0N1CnXsa2zghgNaOPxWpMJXSUJJ9W7140%3D' (2025-01-14)

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