flake.lock: Update

Flake lock file updates:

• Updated input 'backend':
    'github:Bootstrap-Academy/backend/d1920465f7bb23cfcdd2dcc7da96e2615794e80a?narHash=sha256-ou6QLaVsAeVrwTvLT5mYseiM%2BRHnrtdpZxykFZrbyKY%3D' (2025-12-29)
  → 'github:Bootstrap-Academy/backend/75c512396905452b84fd7ca1f67dc94188e65afd?narHash=sha256-4pUbURHgrHyYNDpTBpjbioV/HJx8KGtmk6urfBd5n0k%3D' (2026-01-03)
• Updated input 'backend/devenv':
    'github:cachix/devenv/02c9dcf3e050400d8101057f9f00ec458af7c959?narHash=sha256-dfKDsaBHJXrPOOJHnZlS7NJRNdl15nEiC0IS28m6caU%3D' (2025-12-28)
  → 'github:cachix/devenv/dbdd089d50ace3f34ef0d1e172ac512d86530db8?narHash=sha256-tjYOiNNcKXqkdDjg1a/1nndG5tkbiewxTEe51GOh36M%3D' (2026-01-02)
• Updated input 'backend/devenv/nix':
    'github:cachix/nix/3e5644da6830ef65f0a2f7ec22830c46285bfff6?narHash=sha256-H97KSB/luq/aGobKRuHahOvT1r7C03BgB6D5HBZsbN8%3D' (2025-10-28)
  → 'github:cachix/nix/c62c4bdb6673871ae5cdc51c498df6292d5169aa?narHash=sha256-O0wExzdYqSNqbPYCQhUWeoKlDa7q6wxhuWiHolxqdl8%3D' (2025-12-28)
• Added input 'backend/devenv/nixd':
    'github:nix-community/nixd/d4bf15e56540422e2acc7bc26b20b0a0934e3f5e?narHash=sha256-JTRoaEWvPsVIMFJWeS4G2isPo15wqXY/otsiHPN0zww%3D' (2025-11-24)
• Added input 'backend/devenv/nixd/flake-parts':
    follows 'backend/devenv/flake-parts'
• Added input 'backend/devenv/nixd/flake-root':
    'github:srid/flake-root/b759a56851e10cb13f6b8e5698af7b59c44be26e?narHash=sha256-rBtQ8gg%2BDn4Sx/s%2Bpvjdq3CB2wQNzx9XGFq/JVGCB6k%3D' (2024-08-14)
• Added input 'backend/devenv/nixd/nixpkgs':
    follows 'backend/devenv/nixpkgs'
• Added input 'backend/devenv/nixd/treefmt-nix':
    'github:numtide/treefmt-nix/65712f5af67234dad91a5a4baee986a8b62dbf8f?narHash=sha256-MMi74%2BWckoyEWBRcg/oaGRvXC9BVVxDZNRMpL%2B72wBI%3D' (2024-12-20)
• Added input 'backend/devenv/nixd/treefmt-nix/nixpkgs':
    follows 'backend/devenv/nixd/nixpkgs'
• Updated input 'backend/fenix':
    'github:nix-community/fenix/3b672faf8fcc01eb63856b69afe7a12dcb7c78fe?narHash=sha256-ZNm41Tuh%2BPHpoV7qEFnhgNu/B6Co9c%2BrIttcr7TCaMo%3D' (2025-12-28)
  → 'github:nix-community/fenix/dab1b0c7b3cdd7aa27882ff9ecb740a00cf3a174?narHash=sha256-19hSId4vCMqf9dA%2B%2Bq%2BLOfpbncg1Fp5HNhcV5MQLdsw%3D' (2026-01-02)
• Updated input 'backend/fenix/nixpkgs':
    'github:nixos/nixpkgs/3e2499d5539c16d0d173ba53552a4ff8547f4539?narHash=sha256-QEhk0eXgyIqTpJ/ehZKg9IKS7EtlWxF3N7DXy42zPfU%3D' (2025-12-25)
  → 'github:nixos/nixpkgs/cad22e7d996aea55ecab064e84834289143e44a0?narHash=sha256-5vKw92l1GyTnjoLzEagJy5V5mDFck72LiQWZSOnSicw%3D' (2025-12-30)
• Updated input 'backend/fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/546d1ffbfd296e06424236cd467f41cb6fe63b2e?narHash=sha256-LLGFE8MXlmH9FfPjZAPFnrc0vsUryhIDwcJQgqnpSAg%3D' (2025-12-27)
  → 'github:rust-lang/rust-analyzer/a9026e6d5068172bf5a0d52a260bb290961d1cb4?narHash=sha256-cCZGjubgDWmstvFkS6eAw2qk2ihgWkycw55u2dtLd70%3D' (2025-12-31)
• Updated input 'backend/nixpkgs':
    'github:NixOS/nixpkgs/c0b0e0fddf73fd517c3471e546c0df87a42d53f4?narHash=sha256-coBu0ONtFzlwwVBzmjacUQwj3G%2BlybcZ1oeNSQkgC0M%3D' (2025-12-28)
  → 'github:NixOS/nixpkgs/cad22e7d996aea55ecab064e84834289143e44a0?narHash=sha256-5vKw92l1GyTnjoLzEagJy5V5mDFck72LiQWZSOnSicw%3D' (2025-12-30)
• Updated input 'backend-develop':
    'github:Bootstrap-Academy/backend/d1920465f7bb23cfcdd2dcc7da96e2615794e80a?narHash=sha256-ou6QLaVsAeVrwTvLT5mYseiM%2BRHnrtdpZxykFZrbyKY%3D' (2025-12-29)
  → 'github:Bootstrap-Academy/backend/75c512396905452b84fd7ca1f67dc94188e65afd?narHash=sha256-4pUbURHgrHyYNDpTBpjbioV/HJx8KGtmk6urfBd5n0k%3D' (2026-01-03)
• Updated input 'backend-develop/devenv':
    'github:cachix/devenv/02c9dcf3e050400d8101057f9f00ec458af7c959?narHash=sha256-dfKDsaBHJXrPOOJHnZlS7NJRNdl15nEiC0IS28m6caU%3D' (2025-12-28)
  → 'github:cachix/devenv/dbdd089d50ace3f34ef0d1e172ac512d86530db8?narHash=sha256-tjYOiNNcKXqkdDjg1a/1nndG5tkbiewxTEe51GOh36M%3D' (2026-01-02)
• Updated input 'backend-develop/devenv/nix':
    'github:cachix/nix/3e5644da6830ef65f0a2f7ec22830c46285bfff6?narHash=sha256-H97KSB/luq/aGobKRuHahOvT1r7C03BgB6D5HBZsbN8%3D' (2025-10-28)
  → 'github:cachix/nix/c62c4bdb6673871ae5cdc51c498df6292d5169aa?narHash=sha256-O0wExzdYqSNqbPYCQhUWeoKlDa7q6wxhuWiHolxqdl8%3D' (2025-12-28)
• Added input 'backend-develop/devenv/nixd':
    'github:nix-community/nixd/d4bf15e56540422e2acc7bc26b20b0a0934e3f5e?narHash=sha256-JTRoaEWvPsVIMFJWeS4G2isPo15wqXY/otsiHPN0zww%3D' (2025-11-24)
• Added input 'backend-develop/devenv/nixd/flake-parts':
    follows 'backend-develop/devenv/flake-parts'
• Added input 'backend-develop/devenv/nixd/flake-root':
    'github:srid/flake-root/b759a56851e10cb13f6b8e5698af7b59c44be26e?narHash=sha256-rBtQ8gg%2BDn4Sx/s%2Bpvjdq3CB2wQNzx9XGFq/JVGCB6k%3D' (2024-08-14)
• Added input 'backend-develop/devenv/nixd/nixpkgs':
    follows 'backend-develop/devenv/nixpkgs'
• Added input 'backend-develop/devenv/nixd/treefmt-nix':
    'github:numtide/treefmt-nix/65712f5af67234dad91a5a4baee986a8b62dbf8f?narHash=sha256-MMi74%2BWckoyEWBRcg/oaGRvXC9BVVxDZNRMpL%2B72wBI%3D' (2024-12-20)
• Added input 'backend-develop/devenv/nixd/treefmt-nix/nixpkgs':
    follows 'backend-develop/devenv/nixd/nixpkgs'
• Updated input 'backend-develop/fenix':
    'github:nix-community/fenix/3b672faf8fcc01eb63856b69afe7a12dcb7c78fe?narHash=sha256-ZNm41Tuh%2BPHpoV7qEFnhgNu/B6Co9c%2BrIttcr7TCaMo%3D' (2025-12-28)
  → 'github:nix-community/fenix/dab1b0c7b3cdd7aa27882ff9ecb740a00cf3a174?narHash=sha256-19hSId4vCMqf9dA%2B%2Bq%2BLOfpbncg1Fp5HNhcV5MQLdsw%3D' (2026-01-02)
• Updated input 'backend-develop/fenix/nixpkgs':
    'github:nixos/nixpkgs/3e2499d5539c16d0d173ba53552a4ff8547f4539?narHash=sha256-QEhk0eXgyIqTpJ/ehZKg9IKS7EtlWxF3N7DXy42zPfU%3D' (2025-12-25)
  → 'github:nixos/nixpkgs/cad22e7d996aea55ecab064e84834289143e44a0?narHash=sha256-5vKw92l1GyTnjoLzEagJy5V5mDFck72LiQWZSOnSicw%3D' (2025-12-30)
• Updated input 'backend-develop/fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/546d1ffbfd296e06424236cd467f41cb6fe63b2e?narHash=sha256-LLGFE8MXlmH9FfPjZAPFnrc0vsUryhIDwcJQgqnpSAg%3D' (2025-12-27)
  → 'github:rust-lang/rust-analyzer/a9026e6d5068172bf5a0d52a260bb290961d1cb4?narHash=sha256-cCZGjubgDWmstvFkS6eAw2qk2ihgWkycw55u2dtLd70%3D' (2025-12-31)
• Updated input 'backend-develop/nixpkgs':
    'github:NixOS/nixpkgs/c0b0e0fddf73fd517c3471e546c0df87a42d53f4?narHash=sha256-coBu0ONtFzlwwVBzmjacUQwj3G%2BlybcZ1oeNSQkgC0M%3D' (2025-12-28)
  → 'github:NixOS/nixpkgs/cad22e7d996aea55ecab064e84834289143e44a0?narHash=sha256-5vKw92l1GyTnjoLzEagJy5V5mDFck72LiQWZSOnSicw%3D' (2025-12-30)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/9ef261221d1e72399f2036786498d78c38185c46?narHash=sha256-P6RVkrM9JLCW6xBjSwHfgTOQ1JwBUma5xe5LI8xAPC0%3D' (2025-12-28)
  → 'github:NixOS/nixpkgs/64049ca74d63e971b627b5f3178d95642e61cedd?narHash=sha256-yA/CuWyqm%2BAQo2ivGy6PlYrjZBQm7jfbe461%2B4HF2fo%3D' (2026-01-02)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/c0b0e0fddf73fd517c3471e546c0df87a42d53f4?narHash=sha256-coBu0ONtFzlwwVBzmjacUQwj3G%2BlybcZ1oeNSQkgC0M%3D' (2025-12-28)
  → 'github:NixOS/nixpkgs/cad22e7d996aea55ecab064e84834289143e44a0?narHash=sha256-5vKw92l1GyTnjoLzEagJy5V5mDFck72LiQWZSOnSicw%3D' (2025-12-30)

Author: Defelo