Cardano Updates

refactor: use builtin generics for type hints in docstrings

Update type hints to use builtin generics (e.g., list, tuple) instead of
capitalized versions (e.g., List, Tuple) in docstrings and return
annotations. This improves consistency with modern Python typing
conventions.

feat(txgroup): add byron witness and ref script size params

Extend the TransactionGroup fee calculation to accept optional
parameters for the number of Byron witnesses and the size of reference
scripts. This allows for more precise fee estimation in transactions
involving Byron witnesses or reference scripts.

chore(pyproject): remove black and isort config sections

Removed the [tool.black] and [tool.isort] sections from pyproject.toml. Formatting and sorting of imports is handled by ruff.

chore(ci): improve lint workflow with pre-commit caching

Refactor the repo_lint GitHub Actions workflow to:
- Use Python 3.11 instead of 3.10.
- Add caching for pre-commit hooks to speed up runs.
- Install pre-commit hooks explicitly and show logs on failure.
- Run pre-commit linters with color and diff output on failure.

These changes improve linting reliability and performance in CI.

feat(lint): add pyrefly and update linting configs

- Add pyrefly to pre-commit hooks and development requirements.
- Configure pyrefly in pyproject.toml with project-specific settings and
  per-file ignores.
- Update ruff linting rules to include ANN and add per-file ignore for docs.
- Pin mypy and pre-commit versions for consistency.
- Add pyrefly ignore comments in code to suppress specific errors.

refactor(gov): move governance query methods to query_group

Moved all Conway governance query-related methods from the dedicated
`gov_query_group.py` module into the existing `query_group.py` as
methods with a `get_` prefix. Removed the now-redundant
`gov_query_group.py` and its references from `gov_group.py`. This
consolidates governance query functionality under a single group,
simplifying the codebase and reducing duplication.