[CI, Tests] Fix windows tests (#2337)

Author: Vincent Moens

.github/unittest/windows_optdepts/scripts/install.sh

@@ -37,6 +37,7 @@ fi
 
 # submodules
 git submodule sync && git submodule update --init --recursive
+python -m pip install "numpy<2.0"
 
 printf "Installing PyTorch with %s\n" "${cudatoolkit}"
 if [[ "$TORCH_VERSION" == "nightly" ]]; then