haskellPackages: clean up some overrides

- jailbreak-cabal override isn't needed, shared executables are disabled
  by default (or is this precautionary?)

- Removed and added some infinite recursion overrides, moved them to
  configuration-nix.nix

- Unbreak zstd and attparsec-varword

- mysql override is already in configuration-nix.nix

- Move some overrides for disabling tests due to internet connectivity
  to configuration-nix.nix

Closes https://github.com/NixOS/nixpkgs/pull/62407.