Fix nxos_facts for nxapi transport (#23302)

* Partial revert of 2e476e64cd

This broke handling of nxos_facts over nxapi

* Fix nxos_facts tests not run in isolation

test/integration/targets/nxos_facts/tasks/nxapi.yaml

@@ -8,8 +8,21 @@
 - name: set test_items
   set_fact: test_items="{{ test_cases.files | map(attribute='path') | list }}"
 
+- name: enable nxapi
+  nxos_config:
+    lines:
+      - feature nxapi
+      - nxapi http port 80
+    provider: "{{ cli }}"
+
 - name: run test case
   include: "{{ test_case_to_run }}"
   with_items: "{{ test_items }}"
   loop_control:
     loop_var: test_case_to_run
+
+- name: disable nxapi
+  nxos_config:
+    lines:
+      - no feature nxapi
+    provider: "{{ cli }}"