temp: fix use len(list) not list.count() in expire_and_create_entitlements

[pshiu]

Description

On running expire_and_create_entitlements, we get error:

TypeError: count() takes exactly one argument (0 given)

Full error:

Jun 23 20:32:00 ip-10-3-70-106 [service_variant=lms][celery.app.trace][env:stage-edx-edxapp] ERROR [ip-<redacted IP address>] [user None] [ip None] [trace.py:265] - Task common.djangoapps.entitlements.tasks.expire_and_create_entitlements[<redacted task id>] raised unexpected: TypeError('count() takes exactly one argument (0 given)')
Traceback (most recent call last):
  File "/edx/app/edxapp/venvs/edxapp/lib/python3.8/site-packages/celery/app/trace.py", line 451, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/lib/python3.8/site-packages/newrelic/hooks/application_celery.py", line 99, in wrapper
    return wrapped(*args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/lib/python3.8/site-packages/celery/app/trace.py", line 734, in __protected_call__
    return self.run(*args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/lib/python3.8/site-packages/edx_django_utils/monitoring/internal/code_owner/utils.py", line 193, in new_function
    return wrapped_function(*args, **kwargs)
  File "/edx/app/edxapp/edx-platform/common/djangoapps/entitlements/tasks.py", line 139, in expire_and_create_entitlements
    LOGGER.info('Successfully completed the task expire_and_create_entitlements after examining %d entries', entitlement_ids.count())  # lint-amnesty, pylint: disable=line-too-long
TypeError: count() takes exactly one argument (0 given)

This PR fixes that error.

Additional Information

• Jira: REV-3574
• This PR is a fix forward for:
  • temp: fix EncodeError for username in expire_and_create_entitlements #32564
  • temp: fix EncodeError & correct EntitlementSupportDetail action name in expire_and_create_entitlements #32562
  • temp: [REV-3574] create management command expire_and_create_entitlements #32528

[colinbrash]

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.

[edx-pipeline-bot]

2U Release Notice: This PR has been deployed to the edX production environment.