reverting to force numpy<2

numpy/numpy#26710

Author: JohannesBuchner

.github/workflows/tests.yml

@@ -26,7 +26,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Install dependencies
-      run: python -m pip install --upgrade --force-reinstall cython numpy scipy matplotlib corner getdist h5py pandas flake8 pycodestyle pydocstyle pytest-html pytest-xdist
+      run: python -m pip install cython numpy scipy matplotlib corner getdist h5py pandas flake8 pycodestyle pydocstyle pytest-html pytest-xdist
 
     - name: Lint with flake8
       run: flake8 $(ls ultranest/*.py | grep -Ev '^ultranest/(flatnuts|dychmc|dyhmc|pathsampler).py')

setup.py

@@ -33,7 +33,7 @@
         history_file.read())
 
 
-requirements = ['numpy', 'cython', 'matplotlib', 'corner']
+requirements = ['numpy<2', 'cython', 'matplotlib', 'corner']
 
 setup_requirements = ['pytest-runner', ]