GitHub caching tests are extremely slow on Node 19

I have seen the GitHub caching tests pass on Windows with Node 19, but it took 6 minutes or more just for these tests. I have not seen them pass on Linux or macOS with Node 19, they seem to just time out. Also reproduces locally on Linux. Node 18, 16, 14 are all fine.

My guess is that it's HTTP related, since the only thing that using the GitHub tests do that's of any note is make fetches to a locally running HTTPS server.