master: fix python versions for ci

Author: megabotan

.github/workflows/code_checks.yaml

@@ -6,7 +6,7 @@ jobs:
   code_checks:
     strategy:
       matrix:
-        pyver: [ 3.6, 3.7, 3.8, 3.9 ]
+        pyver: [ 3.7, 3.8, 3.9, 3.10 ]
         os: [ ubuntu, macos, windows ]
       fail-fast: true
     runs-on: ${{ matrix.os }}-latest