GitHub CI is running out of space

[fendor]

GitHub CI is consistently failing with errors such as:

 [8 of 9] Compiling Format           ( test/functional/Format.hs, /home/runner/work/haskell-language-server/haskell-language-server/dist-newstyle/build/x86_64-linux/ghc-9.4.8/hls-2.9.0.1/t/func-test/build/func-test/func-test-tmp/Format.o )
[1 of 1] Compiling Main             ( test/wrapper/Main.hs, /home/runner/work/haskell-language-server/haskell-language-server/dist-newstyle/build/x86_64-linux/ghc-9.4.8/hls-2.9.0.1/t/wrapper-test/build/wrapper-test/wrapper-test-tmp/Main.o )
[9 of 9] Compiling Main             ( test/functional/Main.hs, /home/runner/work/haskell-language-server/haskell-language-server/dist-newstyle/build/x86_64-linux/ghc-9.4.8/hls-2.9.0.1/t/func-test/build/func-test/func-test-tmp/Main.o )
[2 of 2] Linking /home/runner/work/haskell-language-server/haskell-language-server/dist-newstyle/build/x86_64-linux/ghc-9.4.8/hls-2.9.0.1/b/benchmark/build/benchmark/benchmark

<no location info>: warning: [-Wunused-packages]
    The following packages were specified via -package or -package-id flags,
    but were not needed for compilation:
      - hls-2.9.0.1 (exposed by flag -package-id hls-2.9.0.1-inplace-hls-refactor-plugin)
[2 of 2] Linking /home/runner/work/haskell-language-server/haskell-language-server/dist-newstyle/build/x86_64-linux/ghc-9.4.8/hls-2.9.0.1/t/wrapper-test/build/wrapper-test/wrapper-test
[10 of 10] Linking /home/runner/work/haskell-language-server/haskell-language-server/dist-newstyle/build/x86_64-linux/ghc-9.4.8/hls-2.9.0.1/t/func-test/build/func-test/func-test
/usr/bin/ld.gold: fatal error: /home/runner/work/haskell-language-server/haskell-language-server/dist-newstyle/build/x86_64-linux/ghc-9.4.8/hls-2.9.0.1/b/benchmark/build/benchmark/benchmark: No space left on device
collect2: error: ld returned 1 exit status
ghc-9.4.8: `gcc' failed in phase `Linker'. (Exit code: 1)
Error: cabal: Failed to build bench:benchmark from hls-2.9.0.1.

See https://github.com/haskell/haskell-language-server/actions/runs/10446351088/job/28923644007