Dropped support for Python 3.6 and declared support for 3.11

Author: aiudirog

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [ '3.6', '3.7', '3.8', '3.9', '3.10' ]
+        python: [ '3.7', '3.8', '3.9', '3.10', '3.11' ]
     steps:
       - uses: actions/checkout@v3.0.2
       - name: Setup Build Tools

setup.cfg

@@ -9,11 +9,11 @@ classifiers =
     Development Status :: 5 - Production/Stable
     Intended Audience :: Developers
     License :: OSI Approved :: ISC License (ISCL)
-    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
+    Programming Language :: Python :: 3.11
     Topic :: Software Development :: Libraries :: Python Modules
 keywords =
     httpx
@@ -22,7 +22,7 @@ keywords =
 
 [options]
 include_package_data = True
-python_requires = >=3.6
+python_requires = >=3.7
 packages = httpx_gssapi
 install_requires =
     httpx>=0.16,<0.24