Update python-pytest.yml

Author: lixfz

.github/workflows/python-pytest.yml

@@ -37,7 +37,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -q -r requirements.txt "numpy<2.0.0" gcastle pgmpy cython urllib3 igraph pytest-cov==2.4.0  python-coveralls  codacy-coverage
+        pip install -q -r requirements.txt "numpy<2.0.0" gcastle "pgmpy<1.0.0" cython urllib3 igraph pytest-cov==2.4.0  python-coveralls  codacy-coverage
         pip list
     - name: Build extensions
       run: |