[CI] Remove unused lint Docker files

[tlopex]

This removes the unused ci_lint Docker image path

[gemini-code-assist]

Code Review

This pull request removes the ci_lint Docker image and its associated setup scripts, updating the Jenkins pipeline files and local scripts to run linting locally via pre-commit instead of inside a dedicated container. The reviewer noted that the fix parameter in the lint function in tests/scripts/ci.py is now unused and should be removed from the function signature and docstring.

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[gemini-code-assist]

The fix parameter is no longer used anywhere in the lint function body. Since pre-commit runs formatting/fixing by default, this parameter has become redundant.\n\nTo avoid exposing a dead --fix option in the CLI, you should remove fix from the function signature and this docstring:\n\npython\ndef lint(interactive: bool = False, docker_image: str | None = None) -> None:\n \"\"\"\n Run lint checks locally.\n\n arguments:\n interactive -- start a shell after running build / test scripts when using --docker-image\n docker-image -- manually specify a docker image to use\n \"\"\"\n