CI: add Python 3.11 and 3.12 (#12)

* Remove unused import

* Add subdomain endpoint

* Improve README

* CI: add Python 3.11 and 3.12

Author: dannywillems

.github/workflows/actions.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
         poetry-version: ["1.4.0"]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}