[PR #9262/23d97fa4 backport][stable-10] Add inventory plugin iocage (#9378)

Add inventory plugin iocage (#9262)

* Add inventory plugin iocage #9261

* inventory/iocage.py BOTMETA entry added.

* Remove missing methods from the test.

* Avoid shell mode.

* Parameter host is optional default=localhost

* Fix AnsibleError calls.

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* iocage_data removed. Not necessarily defined at this point.

* Description mentions that remote hosts are contacted via SSH.

* test inventory iocage

* Create get_jails and get_properties in iocage plugin to simplify testing.
* Update test_iocage.py
* Add fixtures iocage_*

* Update documentation.

* Update documentation.

* Update documentation.

* Fix localhost environment.

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update plugins/inventory/iocage.py

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit 23d97fa4b0)

Co-authored-by: Vladimir Botka <vbotka@gmail.com>

.github/BOTMETA.yml

@@ -213,6 +213,8 @@ files:
     maintainers: opoplawski
   $inventories/gitlab_runners.py:
     maintainers: morph027
+  $inventories/iocage.py:
+    maintainers: vbotka
   $inventories/icinga2.py:
     maintainers: BongoEADGC6
   $inventories/linode.py: