fix: options to align to ssh ansible plugin

[michaeljohn32]

Fixes #558 by aligning the options for the ssh_netscaler_adc with upstream ansible.

Tests performed:

• Upgrade Ansible to v2.19.3. Run playbook to verify a failing test
• Switch to the code in this PR
• Run playbook and verify successful connection to a Citrix ADC appliance

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[shivashankar-vaddepally]

Hi @michaeljohn32
Please add the playbook used for the test.

thanks

[michaeljohn32]

@shivashankar-vaddepally , thanks for the review!

Sample inventory:

ns-sds:
  hosts:
    ns-sds.myhostname.com:
      ansible_host: ns-sds.myhostname.com
      ansible_password: "{{ netscaler_pass }}"
      ansible_user: "{{ netscaler_user }}"
      ansible_remote_tmp: /tmp

Sample playbook:

- name: Verify Netscaler connection
  hosts: ns-sds
  connection: netscaler.adc.ssh_netscaler_adc
  tasks:
    - name: Run simple command
      changed_when: true
      ansible.builtin.raw: |
        echo "hello world"