Chore/update dev deps 3 feb 2026

[actualben]

This pull request primarily updates dependencies and configuration files to use the latest versions of tools and actions, and makes minor formatting and linting improvements throughout the codebase. The most significant changes are grouped below.

CI/CD Workflow Updates:

• Upgraded GitHub Actions in .github/workflows/check.yml and .github/workflows/pypi.yml to use actions/checkout@v6 and actions/setup-python@v6, and updated YAML formatting for consistency.

Pre-commit Hooks and Tooling Updates:

• Updated multiple pre-commit hook versions in .pre-commit-config.yaml, including pre-commit-hooks, actionlint, shellcheck, black, isort, bandit, flake8, mypy, and safety, to their latest releases for improved linting and static analysis.

Formatting/Linting Changes:

• black added blank lines after module docstrings in several Python files for PEP8 compliance and readability, affecting both source and test files.
• Expanded a pylint disable directive in src/basecfg/basecfg.py to include too-many-positional-arguments.