[package] support Python 3.10, drop Python 3.6

.github/workflows/tests.yml

@@ -25,7 +25,11 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python: [3.9, 3.8, 3.7, 3.6]
+        python:
+          - '3.10'
+          - '3.9'
+          - '3.8'
+          - '3.7'
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v1
@@ -93,7 +97,7 @@ jobs:
           CIBW_BEFORE_BUILD_WINDOWS: python scripts\fetch-vendor C:\cibw\vendor
           CIBW_ENVIRONMENT: AIOQUIC_SKIP_TESTS=ipv6,loss CFLAGS=-I/tmp/vendor/include LDFLAGS=-L/tmp/vendor/lib
           CIBW_ENVIRONMENT_WINDOWS: AIOQUIC_SKIP_TESTS=ipv6,loss INCLUDE=C:\\cibw\\vendor\\include LIB=C:\\cibw\\vendor\\lib
-          CIBW_SKIP: cp27-* cp35-* pp27-*
+          CIBW_SKIP: cp36-* pp36-* *-musllinux*
           CIBW_TEST_COMMAND: python -m unittest discover -t {project} -s {project}/tests
           # there are no wheels for cryptography on these platforms
           CIBW_TEST_SKIP: "*-{manylinux_i686,win32} pp*"

setup.py

@@ -39,10 +39,10 @@
         "Operating System :: OS Independent",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "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",
         "Topic :: Internet :: WWW/HTTP",
     ],
     ext_modules=[