Enhancements to CI and development tools configurations

[egparedes]

Several enhancements to GitHub actions and tox configurations to make CI faster and more consistent.

Main changes:

• All dependencies' versions are now frozen for CI and development environments (using pip-compile from pip-tools). pre-commit configuration uses the same versions (synced using cog).
• Added tox tasks to update the pinned versions in all related files.
• All GitHub CI actions now use pip caches.
• Added Daily CI action to run tests with the newest versions for requirements.
• Enhancing path filters to avoid running unnecessary CI tasks (and other minor cleanups).
• Minor updates to pre-commit configs (and fixes for sources triggering QA errors).
• Fixes and enhancements to mypy configuration.

[DropD]

Very nice. I particularly like that the pre-commit hook dependencies are now synchronized with the project dependencies.