Update Python version to 3.12.1 in CI workflow

Author: enigne

.github/workflows/CI.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12.1']
         backend: ['tensorflow', 'jax', 'pytorch', 'paddle']
 
     steps: