Merge pull request #795 from uber/jeong/pin_numpy_le_2

Pin the numpy version to be <2

Author: paullo0106

pyproject.toml

@@ -26,7 +26,7 @@ dependencies = [
     "forestci==0.6",
     "pathos==0.2.9",
     "pip>=10.0",
-    "numpy>=1.18.5",
+    "numpy>=1.18.5, <2",
     "scipy>=1.4.1",
     "matplotlib",
     "pandas>=0.24.1",
@@ -63,7 +63,7 @@ requires = [
     "setuptools>=18.0",
     "wheel",
     "Cython<=0.29.34",
-    "numpy>=1.18.5",
+    "numpy>=1.18.5, <2",
     "scikit-learn>=0.22.0",
 ]