flake.lock: Update (#309)

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/3247290e1bba55878a2c62d43894d0309d29c918?narHash=sha256-lYWehi0cqBdsL1W4xeUnUcXw4U4aBKKCmmQrR01yqE0%3D' (2024-04-20)
  → 'github:nix-community/fenix/055f6db376eaf544d84aa55bd5a7c70634af41ba?narHash=sha256-QO3Yv3UfJRfhZE1wsHOartg%2Bk8/Kf1BiDyfl8eEpqcE%3D' (2024-04-27)
• Updated input 'fenix/nixpkgs':
    'github:nixos/nixpkgs/5c24cf2f0a12ad855f444c30b2421d044120c66f?narHash=sha256-XtTSSIB2DA6tOv%2Bl0FhvfDMiyCmhoRbNB%2B0SeInZkbk%3D' (2024-04-19)
  → 'github:nixos/nixpkgs/7bb2ccd8cdc44c91edba16c48d2c8f331fb3d856?narHash=sha256-Drmja/f5MRHZCskS6mvzFqxEaZMeciScCTFxWVLqWEY%3D' (2024-04-25)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/c83d8cf5844fff3d6e243ab408669222059af1c6?narHash=sha256-HsVa%2BQM2vMra80OjnjH7JhdvLeJuMdR4sxBNHJveMe4%3D' (2024-04-19)
  → 'github:rust-lang/rust-analyzer/1ed7e2de05ee76f6ae83cc9c72eb0b33ad6903f2?narHash=sha256-S8AsTyJvT6Q3pRFeo8QepWF/husnJh61cOhRt18Xmyc%3D' (2024-04-26)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/74574c38577914733b4f7a775dd77d24245081dd?narHash=sha256-q7APLfB6FmmSMI1Su5ihW9IwntBsk2hWNXh8XtSdSIk%3D' (2024-04-20)
  → 'github:NixOS/nixpkgs/dd403667d37b8822efa205c37fb1375e4c9805fa?narHash=sha256-5GQq2xHYcnLaVUulq69wCPQ2ljKJd0JgR3ZhXtKCZUI%3D' (2024-04-27)
• Updated input 'nixpkgs-master':
    'github:NixOS/nixpkgs/754a00b38a44e774dba3518ced7efbf51a8970ba?narHash=sha256-5zVIy90Uc5LzE7rt4x7LLZZWoYVM5g40QQlAxqc7BDc%3D' (2024-04-20)
  → 'github:NixOS/nixpkgs/a2acec635dd260d8bfeb7c178f17c75d70056ac5?narHash=sha256-c8THg3DZD1uTqrX5sXIOF0V0b0PQbRgfpV4EsghZJzM%3D' (2024-04-28)