pin chempy and pyneqsys versions

Author: slayoo

.github/workflows/buildwheels.yml

@@ -126,7 +126,7 @@ jobs:
           ex -sc 'g/^PyPartMC/d' -cx .binder/requirements.txt
           python -m pip install --force-reinstall --no-deps $PIP_INSTALL_OPTS -r .binder/requirements.txt
           python -m pip install $PIP_INSTALL_OPTS -r gitmodules/devops_tests/requirements.txt
-          python -m pip install $PIP_INSTALL_OPTS $temp[examples] PySDM==3.0.0rc19
+          python -m pip install $PIP_INSTALL_OPTS $temp[examples] PySDM==3.0.0rc19 chempy==0.10.1 pyneqsys==0.5.7
           GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }} python -m pytest --durations=10 ${{ env.PYTEST_SKIP_ARGS }} -v -s -We -p no:unraisableexception gitmodules/devops_tests/test_run_notebooks.py
 
   check_annotated_todos: