Also include tzdata when installing ARA

Currently jobs have several tracebacks like[1].  Treat tzdata as if it
were listed as an ARA requirement.

[1] Grabbed from:
    https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_22b/928656/1/gate/system-config-run-etherpad/22bc1fd/job-output.txt

Using /etc/ansible/ansible.cfg as config file
Operations to perform:
  Apply all migrations: admin, api, auth, contenttypes, db, sessions
Running migrations:
  No migrations to apply.
Traceback (most recent call last):
  File "/usr/lib/python3.10/zoneinfo/_common.py", line 12, in load_tzdata
    return importlib.resources.open_binary(package_name, resource_name)
  File "/usr/lib/python3.10/importlib/resources.py", line 43, in open_binary
    package = _common.get_package(package)
  File "/usr/lib/python3.10/importlib/_common.py", line 66, in get_package
    resolved = resolve(package)
  File "/usr/lib/python3.10/importlib/_common.py", line 57, in resolve
    return cand if isinstance(cand, types.ModuleType) else importlib.import_module(cand)
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'tzdata'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/ansible-venv/lib/python3.10/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
  File "/usr/ansible-venv/lib/python3.10/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/ansible-venv/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 56, in wrapper_view
    return view_func(*args, **kwargs)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/viewsets.py", line 124, in view
    return self.dispatch(request, *args, **kwargs)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/views.py", line 509, in dispatch
    response = self.handle_exception(exc)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/views.py", line 469, in handle_exception
    self.raise_uncaught_exception(exc)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
    raise exc
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/views.py", line 506, in dispatch
    response = handler(request, *args, **kwargs)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/mixins.py", line 18, in create
    serializer.is_valid(raise_exception=True)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/serializers.py", line 223, in is_valid
    self._validated_data = self.run_validation(self.initial_data)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/serializers.py", line 442, in run_validation
    value = self.to_internal_value(data)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/serializers.py", line 499, in to_internal_value
    validated_value = field.run_validation(primitive_value)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/fields.py", line 538, in run_validation
    value = self.to_internal_value(data)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/fields.py", line 1190, in to_internal_value
    return self.enforce_timezone(parsed)
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/fields.py", line 1150, in enforce_timezone
    field_timezone = self.timezone if hasattr(self, 'timezone') else self.default_timezone()
  File "/usr/ansible-venv/lib/python3.10/site-packages/rest_framework/fields.py", line 1174, in default_timezone
    return timezone.get_current_timezone() if settings.USE_TZ else None
  File "/usr/ansible-venv/lib/python3.10/site-packages/django/utils/timezone.py", line 96, in get_current_timezone
    return getattr(_active, "value", get_default_timezone())
  File "/usr/ansible-venv/lib/python3.10/site-packages/django/utils/timezone.py", line 82, in get_default_timezone
    return zoneinfo.ZoneInfo(settings.TIME_ZONE)
  File "/usr/lib/python3.10/zoneinfo/_common.py", line 24, in load_tzdata
    raise ZoneInfoNotFoundError(f"No time zone found with key {key}")
zoneinfo._common.ZoneInfoNotFoundError: 'No time zone found with key UTC'

Change-Id: Ib8923a306b7e15d7ae4a6f4001f46906a454abd0

playbooks/roles/install-ansible/tasks/main.yaml

@@ -14,7 +14,7 @@
   - name: Add ARA to defaults if enabled
     when: install_ansible_ara_enable
     set_fact:
-      _install_ansible_requirements: '{{ _install_ansible_requirements + ["ara[server]"] }}'
+      _install_ansible_requirements: '{{ _install_ansible_requirements + ["ara[server]", "tzdata"] }}'
 
   - name: Set variable
     # NOTE(ianw) the block when: statement is calcuated for each task