Update dependency pylint to v4 (#117)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements-test.txt

@@ -9,6 +9,6 @@ aiofiles==25.1.0
 radon==6.0.1
 types-aiofiles==25.1.0.20251011
 mypy==1.18.2
-pylint==3.3.9
+pylint==4.0.0
 aiofiles==25.1.0
 pydantic==2.12.0