ci: handle dataset for both ladybug and ladybug-python

Author: adsharma

test/test_helper.py

@@ -1,7 +1,15 @@
 import sys
 from pathlib import Path
 
-LBUG_ROOT = Path(__file__).parent.parent
+_REPO_ROOT = Path(__file__).parent.parent.resolve()
+_SIBLING_ROOT = _REPO_ROOT.parent
+
+if (_REPO_ROOT / "dataset").exists():
+    LBUG_ROOT = _REPO_ROOT
+elif (_SIBLING_ROOT / "dataset").exists():
+    LBUG_ROOT = _SIBLING_ROOT
+else:
+    LBUG_ROOT = _REPO_ROOT
 
 if sys.platform == "win32":
     # \ in paths is not supported by lbug's parser