build(nix): update flake lock

[enarx-bot[bot]]

Updated Inputs

• __fenix_3: github:nix-community/fenix/66608b50b795a221e772ad59f4bbc7623e5efb64 → github:nix-community/fenix/1c9e4995fc7022258817f9c9b02c7c4b3d09ca65 (view changes)__
• __nixpkgs_4: github:nixos/nixpkgs/c90c4025bb6e0c4eaf438128a3b2640314b1c58d → github:nixos/nixpkgs/1e2590679d0ed2cee2736e8b80373178d085d263 (view changes)__
• __rust-analyzer-src_3: github:rust-lang/rust-analyzer/14b9d182d54f22eade7afa644d105a18536c596e → github:rust-lang/rust-analyzer/9fca0a4afefead3daf8f66fd357999d7cd520880 (view changes)__