Any pip install now must also use numpy<2

scripts/buildNeuron.sh

@@ -25,14 +25,14 @@ export PYTHON=$(command -v python)
 export PYTHONPATH=$(${PYTHON} -c 'import site; print(":".join(site.getsitepackages()))')
 
 # Install extra dependencies for NEURON into the virtual environment.
-pip install --upgrade -r nrn_requirements.txt
+pip install --upgrade -r nrn_requirements.txt 'numpy<2'
 if [[ -f ci_requirements.txt ]]; then
-  pip install --upgrade -r ci_requirements.txt
+  pip install --upgrade -r ci_requirements.txt 'numpy<2'
 else
   pip install --upgrade plotly "ipywidgets>=7.0.0"
 fi
 if [[ -f external/nmodl/requirements.txt ]]; then
-  pip install --upgrade -r external/nmodl/requirements.txt
+  pip install --upgrade -r external/nmodl/requirements.txt 'numpy<2'
 fi
 # Needed for installation of older NEURON versions with Python 12
 pip install --upgrade setuptools