Fix cli_command junos test failure and update doc (#44021)

* Fix cli_command junos test failure and update doc

*  Fix cli_command module integration test failure
   for junos
*  Update cli_command module doc for prompt and
   config command run scenario's

* Update cli_command module doc

lib/ansible/modules/network/cli/cli_command.py

@@ -57,6 +57,17 @@ EXAMPLES = """
     command: commit replace
     prompt: This commit will replace or remove the entire running configuration
     answer: yes
+
+- name: run config mode command and handle prompt/answer
+  cli_command:
+    command: "{{ item }}"
+    prompt:
+      - "Exit with uncommitted changes"
+    answer: yes
+  loop:
+    - configure
+    - set system syslog file test any any
+    - exit
 """
 
 RETURN = """

test/integration/targets/junos_command/tests/cli/cli_commmand.yaml

@@ -2,28 +2,32 @@
 - debug:
     msg: "START cli/cli_command.yaml on connection={{ ansible_connection }}"
 
-- name: get output for single command
+- block:
+  - name: get output for single command
     cli_command:
-    commands:
-      - show version
+      command: show version
     register: result
 
-- assert:
+  - assert:
       that:
         - "result.changed == false"
         - "result.stdout is defined"
 
-- name: get output for multiple commands
+  - name: test with prompt and answer
     cli_command:
-    commands:
-      - show version
-      - show interfaces
+      command: "{{ item }}"
+      prompt:
+        - "Exit with uncommitted changes"
+      answer: yes
+    loop:
+      - configure
+      - set system syslog file test any any
+      - exit
     register: result
 
-- assert:
+  - assert:
       that:
         - "result.changed == false"
-      - "result.stdout is defined"
-      - "result.stdout | length == 2"
+  when: ansible_connection == 'network_cli'
 
 - debug: msg="END cli/cli_command.yaml on connection={{ ansible_connection }}"