flake.lock: Update (#1567)

Flake lock file updates:

• Updated input 'crane':
    'github:ipetkov/crane/ef5d11e3c2e5b3924eb0309dba2e1fea2d9062ae' (2023-08-23)
  → 'github:ipetkov/crane/80432e15452e55a72403da3bc91837508a4ccae3' (2023-09-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/5690c4271f2998c304a45c91a0aeb8fb69feaea7' (2023-08-25)
  → 'github:NixOS/nixpkgs/aa8aa7e2ea35ce655297e8322dc82bf77a31d04b' (2023-09-01)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/e90223633068a44f0fb62374e0fa360ccc987292' (2023-08-26)
  → 'github:oxalica/rust-overlay/cdf3b15af70f2db17d5f47822f12016f1a89bd73' (2023-09-02)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>