Add test for combine python and file settings

(cherry picked from commit 041695c)

Author: AlanCoding

test/integration/test_config.py

@@ -0,0 +1,7 @@
+from ansible_runner.config._base import BaseConfig
+
+
+def test_combine_python_and_file_settings(project_fixtures):
+    rc = BaseConfig(private_data_dir=str(project_fixtures / 'job_env'), settings={'job_timeout': 40})
+    rc._prepare_env()
+    assert rc.settings == {'job_timeout': 40, 'process_isolation': True}