It seems that the `test_find_not_should_ignore_path` test has some dependency on side-effects from other tests. 

For example it failed here:

https://github.com/apache/airflow/pull/10983/checks?check_run_id=1127304894#step:6:1043

```
>       self.assertEqual(detected_files, should_not_ignore_files)
E       AssertionError: Items in the second set but not the first:
E       'test_load.py'
E       'test_load_sub1.py'
```

And re-running it in a clean system works just fine in the same combination of python/db.

**What you expected to happen**:

The test should clean up /restore everything it needs before running or a test that makes side-effects is found and fixed. 

For now I am moving the test to "heisentests with appropriate note.".

tests/plugins/test_plugin_ignore.py
#
#
#
#
import os
import shutil
import tempfile
import unittest
from unittest.mock import patch
import pytest
from airflow import settings
from airflow.utils.file import find_path_from_directory
class TestIgnorePluginFile(unittest.TestCase):