numpy<1.20 tests

Author: clee-ai

.github/workflows/tests.yaml

@@ -22,7 +22,7 @@ jobs:
         - name: Install dependencies
           run: |
               python -m pip install --upgrade pip
-              pip install numpy scikit-learn flake8 setuptools numba==0.49.1
+              pip install "numpy<1.20" scikit-learn flake8 setuptools numba==0.49.1
 
         - name: Install torch windows + linux
           if: ${{matrix.os != 'macos-latest'}}