Move embedded ansible proxy settings to the top level git repository key

This parallels the data migration in ManageIQ/manageiq-schema#406

https://bugzilla.redhat.com/show_bug.cgi?id=1735712

config/settings.yml

@@ -834,6 +834,12 @@
     - MoveIntoResourcePool
     :VmSuspendedEvent:
     - SuspendVM_Task
+:git_repository_proxy:
+  :host:
+  :password:
+  :port:
+  :user:
+  :scheme:
 :help_menu:
   :documentation:
     :type: default
@@ -868,12 +874,6 @@
     :port:
     :user:
     :scheme:
-  :embedded_ansible:
-    :host:
-    :password:
-    :port:
-    :user:
-    :scheme:
 :log:
   :collection:
     :include_automate_models_and_dialogs: true