update minimum dependency versions

Author: kandersolar

requirements-min.txt

@@ -1,6 +1,6 @@
-numpy~=1.17.0
-pandas~=1.0.0
+numpy~=1.20.0
+pandas~=1.2.0
 pvlib~=0.9.4
 scipy~=1.6.0
-statsmodels~=0.10.0
-scikit-image~=0.16.0
+statsmodels~=0.13.0
+scikit-image~=0.18.0

setup.py

@@ -33,12 +33,12 @@
 ]
 
 INSTALL_REQUIRES = [
-    'numpy >= 1.17.0',
-    'pandas >= 1.0.0, != 1.1.*',
+    'numpy >= 1.20.0',
+    'pandas >= 1.2.0',
     'pvlib >= 0.9.4',
     'scipy >= 1.6.0',
-    'statsmodels >= 0.10.0',
-    'scikit-image >= 0.16.0',
+    'statsmodels >= 0.13.0',
+    'scikit-image >= 0.18.0',
     'importlib-metadata; python_version < "3.8"',
 ]