ci: upgrade python version

This upgrade python version, remove 3.6, add 3.10.

Signed-off-by: HaiLong Yang <[email protected]>

Author: HaiLong Yang

.github/workflows/test.yml

@@ -8,7 +8,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version:
+          - "3.7"
+          - "3.8"
+          - "3.9"
+          - "3.10"
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python