flake.lock: Update (#826)

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/23e89b7da85c3640bbc2173fe04f4bd114342367?narHash=sha256-y/MEyuJ5oBWrWAic/14LaIr/u5E0wRVzyYsouYY3W6w%3D' (2024-11-19)
  → 'github:NixOS/nixpkgs/970e93b9f82e2a0f3675757eb0bfc73297cc6370?narHash=sha256-jNRNr49UiuIwaarqijgdTR2qLPifxsVhlJrKzQ8XUIE%3D' (2024-11-28)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/ed8aa5b64f7d36d9338eb1d0a3bb60cf52069a72?narHash=sha256-RHt12f/slrzDpSL7SSkydh8wUE4Nr4r23HlpWywed9E%3D' (2024-11-23)
  → 'github:oxalica/rust-overlay/c65e91d4a33abc3bc4a892d3c5b5b378bad64ea1?narHash=sha256-dge02pUSe2QeC/B3PriA0R8eAX%2BEU3aDoXj9FcS3XDw%3D' (2024-11-30)

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