tools: enable ruff

[tigarmo]

This PR enables ruff and removes pylint. In the process of fixing ruff errors, mypy and pyright issues are also addressed.

The commits are split to facilitate review:

• First a commit with fixes that ruff does by itself (via tox run -e format-ruff);
• Next a series of commits address remaining ruff issues in individual modules;
• Then a few commits to address newly-uncovered mypy and pyright issues;
• Removal of pylint;
• Bump ruff to use the same version as Starbase;
• Fix test issues (wrong types) and coverage.

After the review is done I'll clean the commits up and keep only a handful with better messages.

Fixes #146

[codecov[bot]]

Codecov Report

Merging #173 (a13c3b1) into main (8b81d8e) will increase coverage by 0.08%. The diff coverage is 97.76%.

@@            Coverage Diff             @@
##             main     #173      +/-   ##
==========================================
+ Coverage   94.54%   94.62%   +0.08%     
==========================================
  Files           7        7              
  Lines        1044     1042       -2     
  Branches      192      190       -2     
==========================================
- Hits          987      986       -1     
  Misses         53       53              
+ Partials        4        3       -1     

Files Changed	Coverage Δ
craft_cli/pytest_plugin.py	46.87% <57.14%> (+0.63%)	:arrow_up:
craft_cli/__init__.py	100.00% <100.00%> (ø)
craft_cli/dispatcher.py	99.13% <100.00%> (ø)
craft_cli/errors.py	100.00% <100.00%> (ø)
craft_cli/helptexts.py	98.01% <100.00%> (+1.19%)	:arrow_up:
craft_cli/messages.py	100.00% <100.00%> (ø)
craft_cli/printer.py	100.00% <100.00%> (ø)