haskell-network_2_6_3_1: disable test suite

[bennofs]

Motivation for this change

The package is missing required files for the test suite. This fixes the
following build error:

  Building test suite 'regression' for network-2.6.3.1..
  [1 of 1] Compiling Main             ( tests/Regression.hs,
dist/build/regression/regression-tmp/Main.o )

  tests/Regression.hs:12:1: error:
      Could not find module ‘Regression.Issue215’
      Use -v (or `:set -v` in ghci) to see a list of the files searched
for.
     |
  12 | import qualified Regression.Issue215 as Issue215
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

[SuperSandro2000]

Shouldn't this go into haskell-updates?

[bennofs]

@SuperSandro2000 ah idk, what's the policy for haskell-updates? This is not an update and has negligible rebuild amounts.

[cdepillabout]

/rebase haskell-updates

[github-actions]

Rebased, please reopen the pull request to restart CI

[cdepillabout]

@GrahamcOfBorg build haskellPackages.network_2_6_3_1

[cdepillabout]

@bennofs Thanks for sending this in.

In general we try to merge all Haskell-related things to the haskell-updates branch (partly just to make sure there are no merge conflicts when merging haskell-updates into master).

Luckily now we have actions rebasing, so I just rebased this onto haskell-updates.

This LGTM