Pin ruff to specific version and prevent from "fixing" cli conftest (apache#29040)

New Ruff release started to "fix" our cli conftest cofiguration,
leading to mypy complaining about the changed line.

This change prevents ruff from "fixing" the line as well as pins
ruff to latest released version so that any future changes are
applied deliberately when we upgrade.

Author: potiuk

.pre-commit-config.yaml

@@ -172,7 +172,7 @@ repos:
         # Since ruff makes use of multiple cores we _purposefully_ don't run this in docker so it can use the
         # host CPU to it's fullest
         entry: ruff --fix --no-update-check --force-exclude
-        additional_dependencies: ['ruff>=0.0.219']
+        additional_dependencies: ['ruff==0.0.226']
         files: \.pyi?$
         exclude: ^airflow/_vendor/
   - repo: https://github.com/psf/black

tests/cli/conftest.py

@@ -27,7 +27,7 @@
 from tests.test_utils.config import conf_vars
 
 # Create custom executors here because conftest is imported first
-custom_executor_module = type(sys)("custom_executor")
+custom_executor_module = type(sys)("custom_executor")  # noqa
 custom_executor_module.CustomCeleryExecutor = type(  # type:  ignore
     "CustomCeleryExecutor", (celery_executor.CeleryExecutor,), {}
 )