Downgrade python version from 3.10 -> 3.9.14 for compat with r-session-complete images

Author: dbkegley

reticulated-image-classifier/manifest.json

@@ -10,7 +10,7 @@
     "has_parameters": false
   },
   "python": {
-    "version": "3.10.0",
+    "version": "3.9.14",
     "package_manager": {
       "name": "pip",
       "version": "23.0.1",