Update flake inputs

[wurzelpfropf]

Updated Flake dependencies through nix flake update.

Resolved URL:  git+file:///home/runner/work/ragenix/ragenix?shallow=1
Locked URL:    git+file:///home/runner/work/ragenix/ragenix?ref=refs/heads/main&rev=321c3d62a6faac3d2ff906969bcc5a293bc5a33b&shallow=1
Description:   A rust drop-in replacement for agenix
Path:          /nix/store/929l0c6dqhdidvgakgia1214qyh4aqn3-source
Revision:      321c3d62a6faac3d2ff906969bcc5a293bc5a33b
Last modified: 2024-09-08 02:24:47
Inputs:
├───agenix: github:ryantm/agenix/f6291c5935fdc4e0bef208cfc0dcab7e3f7a1c41 (2024-08-10 12:45:04)
│   ├───darwin: github:lnl7/nix-darwin/4b9b83d5a92e8c1fbfd8eb27eda375908c11ec4d (2023-11-24 03:11:34)
│   │   └───nixpkgs follows input 'agenix/nixpkgs'
│   ├───home-manager: github:nix-community/home-manager/3bfaacf46133c037bb356193bd2f1765d9dc82c1 (2023-12-20 23:00:17)
│   │   └───nixpkgs follows input 'agenix/nixpkgs'
│   ├───nixpkgs follows input 'nixpkgs'
│   └───systems: github:nix-systems/default/da67096a3b9bf56a91d16901293e51ba5b49a27e (2023-04-09 08:27:08)
├───crane: github:ipetkov/crane/7e4586bad4e3f8f97a9271def747cf58c4b68f3c (2024-09-04 00:26:06)
├───flake-utils: github:numtide/flake-utils/b1d9ab70662946ef0850d488da1c9019f3a9752a (2024-03-11 08:33:50)
│   └───systems: github:nix-systems/default/da67096a3b9bf56a91d16901293e51ba5b49a27e (2023-04-09 08:27:08)
├───nixpkgs: github:nixos/nixpkgs/574d1eac1c200690e27b8eb4e24887f8df7ac27c (2024-09-06 14:57:51)
└───rust-overlay: github:oxalica/rust-overlay/8cc45e678e914a16c8e224c3237fb07cf21e5e54 (2024-09-07 02:22:34)
    └───nixpkgs follows input 'nixpkgs'

Updated Cargo dependencies through cargo update.

Dependency status of main prior to this PR:

[veehaitch]

Regarding RUSTSEC-2024-0006: we only use shlex::split and that should be fine.