Bad gateway (502) when accessing head.hackage
See https://github.com/haskell-hvr/resolv/actions/runs/4037228425/jobs/6940376309#step:8:40
Running: /usr/bin/curl 'https://ghc.gitlab.haskell.org/head.hackage/root.json' ...
Unexpected response 502 for https://ghc.gitlab.haskell.org/head.hackage/root.json
Same error when navigating in the browser to https://ghc.gitlab.haskell.org/head.hackage/