CI: Enable flake8-comprehension and fix issues

[Flamefire]

https://pypi.org/project/flake8-comprehensions/ has various useful checks, most importantly:

C419 Unnecessary list comprehension in <any/all>() prevents short-circuiting - rewrite as a generator.

I.e. things like any([expensive_check(x) for x in collection]) runs the check after processing the full collection instead of stopping after the first "match" which costs performance.

To me the whole collection of checks look useful for performance and readability so enable them all.

See easybuilders/easybuild-framework#5043

Requires:

• Add runtime_only param to dependency_names easybuild-framework#5044 for dependency_name(runtime_only=True) I used as some issues involved emulating this function