Update supported python versions

Author: kbattocchi

azure-pipelines-steps.yml

@@ -6,7 +6,7 @@
 parameters:
   package: '-e .'
   images: ['ubuntu-20.04', 'macOS-12', 'windows-2019']
-  versions: ['3.6', '3.7', '3.8', '3.9']
+  versions: ['3.7', '3.8', '3.9', '3.10']
   job: 
     job: Job
 

setup.cfg

@@ -20,10 +20,10 @@ project_urls =
     Source Code=https://github.com/Microsoft/EconML
     Documentation=https://econml.azurewebsites.net/
 classifiers =
-    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
     License :: OSI Approved :: MIT License
     Operating System :: MacOS
     Operating System :: Microsoft :: Windows