remove tullia

[dermetfan]

Description

Remove tullia/cicero jobs as we are going to use Hydra instead. Hydra jobs are already in place and we can start using them without any changes.

Changelog

- description: |
    switch to Hydra for CI
  compatibility: no-api-changes
  type: maintenance

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• The change log section in the PR description has been filled in
• New tests are added if needed and existing tests are updated.
• Any changes are noted in the CHANGELOG.md for affected package
• The version bounds in .cabal files are updated
• CI passes. See note on CI. The following CI checks are required:
  • Code is linted with hlint. See .github/workflows/check-hlint.yml to get the hlint version
  • Code is formatted with stylish-haskell. See .github/workflows/stylish-haskell.yml to get the stylish-haskell version
  • Code builds on Linux, MacOS and Windows for ghc-8.10.7 and ghc-9.2.7
• Self-reviewed the diff

[angerman]

LGTM