Updated python build matrix to drop 3.7 and support 3.10 and 3.11

.github/workflows/ci_testing.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
        os: [ubuntu-latest, macos-latest]
-       python-version: ["3.7", "3.8", "3.9"]
+       python-version: ["3.8", "3.9", "3.10", "3.11"]
     defaults:
       run:
         shell: bash -l {0}