Upmerge changes from hoogle.haskell.org

[Bodigrim]

This is https://github.com/bgamari/hoogle/tree/h-o-deployment rebased.

@MangoIV could you please review Nix? Do we still need pkgs.haskellPackages.override for crypton-connection? Should flake.lock be updated? Anything else? Extra kudos if you can actually build it and confirm that it's in a working order.

[MangoIV]

Maybe we don't need it anymore but since it's pinned either way it seems unnecessary to change it, if hoogle itself doesn't need it.

[MangoIV]

I will run a quick build and see if everything's okay and if it is, we can just accept it as is.

[MangoIV]

hackage-revdeps seems like it is too old with the new changes to hoogle. I will try to prepare a patch in the following days :)

[MangoIV]

@Bodigrim, will you tell me when this is ready to be deployed? Or can I just do it as soon as this MR is merged?

[Bodigrim]

Sure, I'll update you once ready.

(Ben switched to optparse-applicative in his branch, and I'm trying to reduce the amount of breakage, but it takes much longer than expected)