ios test changes (#35510)

* Fix over-byte

* Update ios tests to call `provider`

To continue to support testing `connection: local`

* Fix command dict handling in ios_user

* Clean up unit tests, too

test/integration/targets/ios_config/tests/cli/src_invalid.yaml

@@ -6,7 +6,7 @@
 - name: configure with invalid src
   ios_config:
     src: basic/foobar.j2
-    authorize: yes
+    provider: "{{ cli }}"
   register: result
   ignore_errors: yes