flake.lock: Update
Flake lock file updates:
• Updated input 'haskell-nix':
'github:input-output-hk/haskell.nix/cad2645' (2026-01-03)
→ 'github:input-output-hk/haskell.nix/7f5a9ef' (2026-02-28)
• Removed input 'haskell-nix/cabal-32'
• Updated input 'haskell-nix/hackage':
'github:input-output-hk/hackage.nix/05797dd' (2026-01-03)
→ 'github:input-output-hk/hackage.nix/93f0f7e' (2026-02-28)
• Updated input 'haskell-nix/hackage-for-stackage':
'github:input-output-hk/hackage.nix/fba3874' (2026-01-03)
→ 'github:input-output-hk/hackage.nix/a240f6b' (2026-02-28)
• Added input 'haskell-nix/hls-2.12':
'github:haskell/haskell-language-server/7d983de' (2025-09-24)
• Updated input 'haskell-nix/iserv-proxy':
'github:stable-haskell/iserv-proxy/1506051' (2025-08-15)
→ 'github:stable-haskell/iserv-proxy/91ef7ff' (2026-02-04)
• Updated input 'haskell-nix/stackage':
'github:input-output-hk/stackage.nix/8a7333a' (2026-01-03)
→ 'github:input-output-hk/stackage.nix/d3613b6' (2026-02-28)