Extend ruff with preview option

[berland]

Adding preview = True to the [tool.lint.ruff] section in pyproject.toml extends ruff to include more checks, including several checks that was earlier enforced in the Ert codebase through pylint.

Then run ruff to get an overview of issues:

$ ruff -q src tests | cut -f2 -d' ' | sort | uniq -c | sort -nr
  121 PLC2701
  90 PLR6301
  67 PLR6201
  15 PLR0914
  13 F841
  12 PLW1641
   6 PLR0904
   4 PLW1514
   3 SIM103
   3 PLR1702
   2 SIM300
   2 PLW3201
   2 PLW0108
   2 PLC0415
   1 PLR1704
   1 PLC2801

Use ruff rule SIM300 (or do a browser search) to explain each rule).

For each of these there are three options:

1. Fix all issues in the codebase
2. Put the rule into the exception list in pyproject.toml
3. Fix some of the issues, and add noqa: ruleid statements to those we don't want to to fix

This issue takes over from #3309

[kachida]

Hi @berland , I'm interested in looking on to this issue, can you please assign me this task.

[berland]

Hi @berland , I'm interested in looking on to this issue, can you please assign me this task.

Good. This issue might need several PRs to be solved, so please go ahead and start working on PRs.