drop 3.6 and add 3.11 (#152)

Co-authored-by: peterstone2017 <12449837+YunchuWang@users.noreply.github.com>
Co-authored-by: gavin-aguiar <80794152+gavin-aguiar@users.noreply.github.com>

Author: 3 people

.github/workflows/gh-tests-ci.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python_version: [3.6, 3.7, 3.8, 3.9, "3.10"]
+        python_version: [3.7, 3.8, 3.9, "3.10", "3.11"]
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python_version }}