chore: typehint tests

tests/fixtures/__init__.py

@@ -1,5 +1,7 @@
 from pathlib import Path
 
 CWD = Path(__file__).parent
-def fixture_path(fixture: str) -> str:
-    return str(CWD / fixture)
+
+
+def fixture_path(fixture: str) -> Path:
+    return Path(CWD).joinpath(fixture)