fix(plugins): Root folder name on generated .tar.gz (#638)

Author: marioevz

src/pytest_plugins/test_filler/test_filler.py

@@ -592,7 +592,7 @@ def create_tarball(
         with tarfile.open(tarball_filename, "w:gz") as tar:
             for file in source_dir.rglob("*"):
                 if file.suffix in {".json", ".ini"}:
-                    arcname = file.relative_to(source_dir.parent)
+                    arcname = Path("fixtures") / file.relative_to(source_dir)
                     tar.add(file, arcname=arcname)