Restore numpy 2.0 pip-pre pytest workflow (#141)

* split pip-pre matplotlib

* Revert "split pip-pre matplotlib"

This reverts commit 16d60c5.

* try pins

* try again

* try again

.github/workflows/pytest.yaml

@@ -83,7 +83,9 @@ jobs:
           python -m pip install --progress-bar off --upgrade pip setuptools
           python -m pip install --progress-bar off .[test]
           python -m pip install --progress-bar off --upgrade git+https://github.com/mne-tools/mne-python
-          python -m pip install --progress-bar off --upgrade --pre --only-binary :all: -i https://pypi.anaconda.org/scientific-python-nightly-wheels/simple --timeout=180 numpy scipy scikit-learn matplotlib
+          python -m pip install matplotlib
+          python -m pip install --progress-bar off --upgrade --no-deps --pre --only-binary :all: -i https://pypi.anaconda.org/scientific-python-nightly-wheels/simple --timeout=180 matplotlib
+          python -m pip install --progress-bar off --upgrade --pre --only-binary :all: -i https://pypi.anaconda.org/scientific-python-nightly-wheels/simple --timeout=180 numpy scipy scikit-learn
       - name: Display system information
         run: pycrostates-sys_info --developer
       - name: Display MNE info