Add support for Python 3.11 (#256)

setup.py

@@ -31,7 +31,7 @@ setup(
     version='0.7.1',
     author='Microsoft Corporation',
     packages=find_packages(exclude=["tests", "tests.*"]),
-    url=("https://github.com/Azure/msrest-for-python"),
+    url="https://github.com/Azure/msrest-for-python",
     license='MIT License',
     description='AutoRest swagger generator Python client runtime.',
     long_description=open('README.rst').read(),
@@ -45,6 +45,7 @@ setup(
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
         'License :: OSI Approved :: MIT License',
         'Topic :: Software Development'],
     python_requires=">=3.6",

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist=py27, py36
+envlist=py{36,37,38,39,310,311}
 skipsdist=True
 
 [testenv]