Add stylish-haskell to dev-shell and update versions

[palas]

Description

This PR adds stylish-haskell to the development shell and updated the CI checked versions to match those of the shell for stylish-haskell and hlint.

Motivation: Since the code checked against both tools by the CI, it only makes sense to have the right versions in the shell so that developers can format the files they commit conveniently and pass the CI more easily.

Checklist

• [x] Commit sequence broadly makes sense and commits have useful messages
• [x] New tests are added if needed and existing tests are updated. These may include:
  • golden tests
  • property tests
  • roundtrip tests
  • integration tests See Runnings tests for more details
• [x] Any changes are noted in the CHANGELOG.md for affected package
• [x] The version bounds in .cabal files are updated
• [x] CI passes. See note on CI. The following CI checks are required:
  • [x] Code is linted with hlint. See .github/workflows/check-hlint.yml to get the hlint version
  • [x] Code is formatted with stylish-haskell. See .github/workflows/stylish-haskell.yml to get the stylish-haskell version
  • [x] Code builds on Linux, MacOS and Windows for ghc-8.10.7 and ghc-9.2.7
• [x] Self-reviewed the diff