Fix pytest ignore

Author: LemonPi

.github/workflows/python-package.yml

@@ -42,4 +42,4 @@ jobs:
           flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
       - name: Test with pytest
         run: |
-          pytest --ignore=mujoco_menagerie
+          pytest --ignore=tests/mujoco_menagerie