Removed prereq version changes that caused incompatibility with Python 3.6

Author: mboglesby

netapp_dataops_k8s/setup.cfg

@@ -27,10 +27,10 @@ packages = find_namespace:
 scripts =
     netapp_dataops/netapp_dataops_k8s_cli.py
 install_requires =
-    ipython==7.28.0
-    kubernetes==18.20.0
-    pandas==1.3.3
-    tabulate==0.8.9
+    ipython
+    kubernetes
+    pandas
+    tabulate
     netapp-astra-toolkits==2.0
     certifi==2020.12.5
     chardet==4.0.0