Drop Ansible support for v2.9 and v2.10 (#8925)

Ansible v2.9 and v2.10 are EOL as [1].
This drops those version supports by following the upstream Ansible.

This sets use_ssh_args true always because that is required to use
ssh_args on ansible.cfg on Ansible v2.11 or later[2].

ansible_ssh_host is replaced with ansible_host because ansible_ssh_host
has been deprecated already and cenots7 jobs were failed due to the
deprecated ansible_ssh_host.

[1]: https://docs.ansible.com/ansible/devel/reference_appendices/release_and_maintenance.html#ansible-core-changelogs
[2]: https://docs.ansible.com/ansible/latest/collections/ansible/posix/synchronize_module.html#parameter-use_ssh_args

roles/download/tasks/download_container.yml

@@ -83,7 +83,7 @@
       synchronize:
         src: "{{ image_path_final }}"
         dest: "{{ image_path_cached }}"
-        use_ssh_args: "{{ has_bastion | default(false) }}"
+        use_ssh_args: true
         mode: pull
       when:
         - not image_is_cached
@@ -95,7 +95,7 @@
       synchronize:
         src: "{{ image_path_cached }}"
         dest: "{{ image_path_final }}"
-        use_ssh_args: "{{ has_bastion | default(false) }}"
+        use_ssh_args: true
         mode: push
       delegate_facts: no
       register: upload_image

roles/download/tasks/download_file.yml

@@ -103,7 +103,7 @@
     synchronize:
       src: "{{ file_path_cached }}"
       dest: "{{ file_path_cached }}"
-      use_ssh_args: "{{ has_bastion | default(false) }}"
+      use_ssh_args: true
       mode: pull
     when:
     - download_force_cache
@@ -114,7 +114,7 @@
     synchronize:
       src: "{{ file_path_cached }}"
       dest: "{{ download.dest }}"
-      use_ssh_args: "{{ has_bastion | default(false) }}"
+      use_ssh_args: true
       mode: push
     register: get_task
     until: get_task is succeeded