Update example image from fedora:39 to fedora:42 (#2541) (#2558)

* Manually defined python package, swapped to main fedora registry, bumped version to fedora 42

---------

Co-authored-by: Maxwell G <[email protected]>
(cherry picked from commit e1c5a62)

Co-authored-by: Lyle McKarns <[email protected]>

Author: patchback[bot]

docs/docsite/rst/getting_started_ee/yaml/execution-environment.yml

@@ -2,9 +2,11 @@ version: 3
 
 images:
   base_image:
-    name: quay.io/fedora/fedora:39
+    name: registry.fedoraproject.org/fedora:42
 
 dependencies:
+  python_interpreter:
+    package_system: python3
   ansible_core:
     package_pip: ansible-core
   ansible_runner: