Specifying an invalid git host dependency hangs

[ngoldbaum]

I had a typo in my pixi.toml to point to a github URL that is a 404:

[package.host-dependencies]
python.git = "https://github.com/crosaderky/cpython"
python.subdirectory = "Tools/pixi-packages/tsan"
python.rev = "eb0149f0b830651bffe757126f9d699859aa0fda"

This hangs forever despite the fact that the repository doesn't exist:

DEBUG pixi_git::resolver: Fetching source distribution from Git: https://github.com/crosaderky/cpython
DEBUG fetch{repository=https://github.com/crosaderky/cpython}: pixi_git::source: Updating Git source `https://github.com/crosaderky/cpython`
DEBUG fetch{repository=https://github.com/crosaderky/cpython}: pixi_git::git: Attempting GitHub fast path for: https://api.github.com/repos/crosaderky/cpython/commits/eb0149f0b830651bffe757126f9d699859aa0fda
DEBUG fetch{repository=https://github.com/crosaderky/cpython}: pixi_git::git: failed to check github fast path Reqwest(reqwest::Error { kind: Status(404, None), url: "https://api.github.com/repos/crosaderky/cpython/commits/eb0149f0b830651bffe757126f9d699859aa0fda" })
DEBUG fetch{repository=https://github.com/crosaderky/cpython}: pixi_git::git: Performing a Git fetch for: https://github.com/crosaderky/cpython with repo path /Users/goldbaum/Library/Caches/rattler/cache/git-v0/db/402bfcf6bf6f4164
▪ fetching repodata    [━━━━━━━━━━━━━━━━━━━━] 1.16 MiB/1.16 MiB
▪ fetching repodata    [━━━━━━━━━━━━━━━━━━━━] 1.16 MiB/1.16 MiB
▪ solving              [━━━━━━━─────────────]  1/3
  ⠚ fetching git dependencies      checking out https://github.com/crosaderky/cpython@eb0149f0b830651bffe757126f9d699859aa0fda