Update docker.io/library/python Docker tag to v3.14

molecule-shared/vars.yml

@@ -11,7 +11,7 @@ molecule_shared_image_curl: "docker.io/curlimages/curl:8.11.1"
 
 # Used for small stub services (a fake homeserver, and so on).
 # renovate: datasource=docker depName=docker.io/library/python
-molecule_shared_image_python: "docker.io/library/python:3.13-alpine"
+molecule_shared_image_python: "docker.io/library/python:3.14-alpine"
 
 # Postgres for scenarios whose role has a database. Pinned at the major the postgres role
 # deploys to new installations, and left to Renovate from there: when a new major lands,