Dropped support for Python 3.6 and 3.7.

Author: jfjlaros

.github/workflows/python-package.yml

@@ -12,10 +12,11 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - 3.6
-          - 3.7
-          - 3.8
-          - 3.9
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}