Revert "test only for Python 3.12 for now"

This reverts commit ab2cdf9.

Author: syntron

.github/workflows/Test.yml

@@ -12,7 +12,7 @@ jobs:
     timeout-minutes: 30
     strategy:
       matrix:
-        python-version: ['3.12']
+        python-version: ['3.10', '3.12']
         os: ['ubuntu-latest', 'windows-latest']
         omc-version: ['stable']