flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/344945339ec0e01c62195b849ae8a67eaa1004a3?narHash=sha256-y0FYxyHd45FQkl1S4PIq9eNaEe2tEemHpQ3sp%2BC19Pk%3D' (2024-08-11)
  → 'github:nix-community/fenix/9ecf5e7d800ace001320da8acadd4a3deb872a83?narHash=sha256-88f0KK8h6tGIP4Na5RJDKs0S%2B7WsGGaCGNkLj/bPV3g%3D' (2024-08-26)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/0daeb5c0b05cfdf2101b0f078c27539099bf38e6?narHash=sha256-xAxVDxuvCs8WWkrxVWjCiqxTkHhGj7sSppr1YMuEdT8%3D' (2024-08-10)
  → 'github:rust-lang/rust-analyzer/7106cd3be50b2a43c1d9f2787bf22d4369c2b25b?narHash=sha256-mrfwk6nO8N2WtCq3sB2zhd2QN1HMKzeSESzOA6lSsQg%3D' (2024-08-25)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/5e0ca22929f3342b19569b21b2f3462f053e497b?narHash=sha256-M0xJ3FbDUc4fRZ84dPGx5VvgFsOzds77KiBMW/mMTnI%3D' (2024-08-09)
  → 'github:NixOS/nixpkgs/d0e1602ddde669d5beb01aec49d71a51937ed7be?narHash=sha256-pP3Azj5d6M5nmG68Fu4JqZmdGt4S4vqI5f8te%2BE/FTw%3D' (2024-08-24)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/ed4fe9af3814694d59c572649e881a6aa6eba533?narHash=sha256-oS8Qhpo71B/6OOsuVBFJbems7RKD/5e3TN2AdXhwMjg%3D' (2024-08-11)
  → 'github:oxalica/rust-overlay/19b70f147b9c67a759e35824b241f1ed92e46694?narHash=sha256-ap2jIQi/FuUHR6HCht6ASWhoz8EiB99XmI8Esot38VE%3D' (2024-08-26)