zigmod fetch panics on malformed zigmod.yml

[alarbada]

Or something like that.

Example configuration:

id: owwzd4yoivw3ux36rm4gz9t3byhbbtdlf9dxal6wm0vodan3
name: web-server
license: MIT
description: testing things
root_dependencies:
  - git https://github.com/Snektron/vulkan-zig <-- Missing src:

This fails with:

Adding the missing src: property fixes it.