Describe the bug

Cabal packs the documentation generated by haddock with the tar package. tar keeps too many file descriptors open in some circumstance: see haskell/tar#100

We should wait for the fix and update our dependency. Or switch to another packing library.

To Reproduce
See https://gitlab.haskell.org/ghc/ghc/-/issues/25172

Expected behavior
Don't crash because of FD starvation

System information

• Linux with ulimit -n 256
• GHC 9.12 and head