Cardano Updates

chore: remove pyrefly from project configuration

Remove all references to pyrefly from pre-commit config, pyproject.toml,
and requirements-dev.txt. This includes the local pre-commit hook and
pyrefly-specific settings. Also clean up pyrefly ignore comments in
clusterlib_klass.py.

We keep using mypy a pyright for type checking.

fix(tx): retry mempool submission on MempoolTxTooSlow

Improve transaction submission robustness by retrying up to five times
when a "MempoolTxTooSlow" error is encountered during transaction
submission to the mempool. Add warnings for each retry attempt and raise
a clear error if all attempts fail. Also, clarify log messages and
attempt tracking for transaction resubmission.