android.yml: python version changes to 3.12, from 3.7, to fix error that GitHub runners do not have 3.7 any more

Author: dconeybe

.github/workflows/android.yml

@@ -46,7 +46,7 @@ jobs:
       matrix:
         os: [macos-12, ubuntu-latest, windows-latest]
         architecture: [x64]
-        python_version: [3.7]
+        python_version: [3.12]
     steps:
       - name: setup Xcode version (macos)
         if: runner.os == 'macOS'