ci: fix lint job

[anakin87]

Related Issues

• In ci: make lint workflow check pyproject.toml #9199, I made the lint job trigger when pyproject.toml is changed (to check type issues with mypy)
• The lint job includes mypy and pylint. Pylint runs on the changed files.
• Doing pylint pyproject.toml is not expected and causes errors. See an example: https://github.com/deepset-ai/haystack/actions/runs/14381662538/job/40327103358

Proposed Changes:

• change the lint job to trigger when pyproject.toml is changed but do not pass pyproject.toml to pylint

How did you test it?

CI; made a change in pyproject in f1313dc to trigger the job -> https://github.com/deepset-ai/haystack/actions/runs/14399118142/job/40381073183 no errors

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test: and added ! in case the PR includes breaking changes.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[coveralls]

Pull Request Test Coverage Report for Build 14399118142

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 90.388%

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Totals
Change from base Build 14399005423:	0.0%
Covered Lines:	10683
Relevant Lines:	11819

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💛 - Coveralls

[sjrl]

Looks good!