Do not write octavia_amp_ssh_key if auto_config disabled

This task is writing private key from passwords to
/etc/kolla/octavia-worker/{{ octavia_amp_ssh_key_name }} even
if user disabled octavia auto configure.

This patch is adding conditional for this task and skipping
it if octavia_auto_configure: "no".

Closes-Bug: #1927727

Change-Id: Ib993b387d681921d804f654bea780a1481b2b0d0

ansible/roles/octavia/tasks/config.yml

@@ -110,7 +110,9 @@
         group: "{{ config_owner_group }}"
         mode: "0400"
       become: True
-      when: inventory_hostname in groups[octavia_services['octavia-worker']['group']]
+      when:
+        - inventory_hostname in groups[octavia_services['octavia-worker']['group']]
+        - octavia_auto_configure | bool
 
     - name: Copying certificate files for octavia-worker
       vars:

releasenotes/notes/bug-1927727-4437103de59e85e5.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixes an issue with Octavia SSH key copying if user disabled Octavia
+    auto configuration.
+    `LP##1927727 <https://bugs.launchpad.net/kolla-ansible/+bug/1927727>`__