master: fix python versions for ci 2

Author: megabotan

.github/workflows/code_checks.yaml

@@ -6,14 +6,14 @@ jobs:
   code_checks:
     strategy:
       matrix:
-        pyver: [ 3.7, 3.8, 3.9 ]
+        pyver: [ '3.6', '3.7', '3.8', '3.9', '3.10' ]
         os: [ ubuntu, macos, windows ]
       fail-fast: true
     runs-on: ${{ matrix.os }}-latest
     timeout-minutes: 5
     steps:
       - name: Set up Python ${{ matrix.pyver }}
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.pyver }}
       - name: Checkout