move conftest to root level

src/conftest.py

@@ -0,0 +1,20 @@
+from pathlib import Path
+
+import pytest
+from dotenv import dotenv_values
+
+
+def pytest_addoption(parser):
+    parser.addoption(
+        "--env_file_path",
+        action="store",
+    )
+
+
+@pytest.fixture
+def config(request):
+    dotenv_path = request.config.getoption("--env_file_path")
+    dotenv_path = Path(dotenv_path)
+    assert dotenv_path.is_file()
+    config = dotenv_values(dotenv_path)
+    return config