Required Cython<3 until source code is updated

Author: antonwolfy

.github/workflows/build-sphinx.yml

@@ -80,7 +80,7 @@ jobs:
       - name: Install dpnp dependencies
         run: |
           conda install dpctl mkl-devel-dpcpp onedpl-devel tbb-devel dpcpp_linux-64 \
-              cmake cython pytest ninja scikit-build sysroot_linux-64">=2.28" ${{ env.CHANNELS }}
+              cmake cython"<3" pytest ninja scikit-build sysroot_linux-64">=2.28" ${{ env.CHANNELS }}
 
       - name: Install cuPy dependencies
         run: conda install cupy cudatoolkit=10.0

.github/workflows/generate_coverage.yaml

@@ -41,7 +41,7 @@ jobs:
           sudo apt-get install lcov
       - name: Install dpnp dependencies
         run: |
-          conda install cython llvm cmake">=3.21" scikit-build ninja pytest pytest-cov coverage[toml] \
+          conda install cython"<3" llvm cmake">=3.21" scikit-build ninja pytest pytest-cov coverage[toml] \
               dpctl dpcpp_linux-64 sysroot_linux-64">=2.28" mkl-devel-dpcpp tbb-devel onedpl-devel ${{ env.CHANNELS }}
       - name: Conda info
         run: |

conda-recipe/meta.yaml

@@ -9,7 +9,7 @@ requirements:
       - python
       - setuptools
       - numpy >=1.19,<1.25a0
-      - cython
+      - cython <3
       - cmake >=3.21
       - ninja
       - git