[NOMERGE] Limit numpy to <1.22.0

Author: markotoplak

requirements-core.txt

@@ -1,5 +1,5 @@
 pip>=9.0
-numpy>=1.16.0
+numpy>=1.16.0,<1.22.0
 scipy>=0.16.1
 # scikit-learn version 0.23.0 have error with slow k-means, fixed in 0.23.1
 # scikit-learn version 1.0.0 includes problematic libomp 12 which breaks xgboost