Automatically update flake.lock to the latest version

[serokell-bot]

input	old	new	diff
hackage	b507038df9 (2025-04-28)	097dcc29f3 (2025-08-25)	link
stackage	66b7910157 (2025-04-25)	ffe783102e (2025-08-24)	link

Last updated: 2025-08-25 02:01:06.095796284 UTC

CC @serokell/operations

[serokell-bot]

I tried updating flake.lock, but failed:

Error during flake update: Command was terminated or exited with a non-zero status Some(1) and the following output: 
 warning: cannot read flake registry '/nix/store/aifjlfvjck1nc8vnradksnhrv5c40ivx-flake-registry.json': error: input attribute '__final' not supported by scheme 'github'
error:
       … while updating the lock file of flake 'git+file:///var/lib/update-daemon/.cache/update-daemon/16116928000694516837?ref=refs/heads/automatic-update&rev=536e6adfe45237b96e6a72899f82beae35357841'

       … while updating the flake input 'haskell-nix'

       error: cannot find flake 'flake:haskell-nix' in the flake registries