Bump CI version to check conditional type hinting

Author: glopesdev

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: [3.9, 3.11]
+        python-version: [3.9, 3.12]
       fail-fast: false
     steps:
       - name: Checkout