[COST-5028] guard against report_status not existing

[maskarb]

Jira Ticket

COST-5028

Description

This change will prevent task failures when report_status does not exist for OCPCloudParquetReportProcessor.

Testing

starting on main:

1. load test data (make load-test-customer-data)
2. trigger ocp-on-cloud resummary:

http://localhost:5042/api/cost-management/v1/report/process/openshift_on_cloud/?schema=org1234567&provider_uuid={any cloud source uuid}&start_date=2024-04-01

3. in worker logs, see task failure:

koku-worker-1  | [2024-05-10 17:18:40,119] ERROR 5b2f96c5-43f6-451e-8a02-29902e6bfc15 1160 Task failed: 'OCPCloudParquetReportProcessor' object has no attribute 'report_status'

4. checkout branch and ensure worker reloads
5. re-hit this endpoint:

http://localhost:5042/api/cost-management/v1/report/process/openshift_on_cloud/?schema=org1234567&provider_uuid={any cloud source uuid}&start_date=2024-04-01

6. see the task complete successfully.

Release Notes

• proposed release note

* [COST-5028](https://issues.redhat.com/browse/COST-5028) guard against non-existent report_status

[codecov]

Codecov Report

Attention: Patch coverage is 81.81818% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 94.1%. Comparing base (5e23153) to head (7cf13a9).

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #5099     +/-   ##
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- Coverage   94.1%   94.1%   -0.0%     
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  Files        378     378             
  Lines      31577   31579      +2     
  Branches    3753    3754      +1     
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- Hits       29728   29725      -3     
- Misses      1177    1180      +3     
- Partials     672     674      +2     

[djnakabaale]

lgtm 👍🏾

[samdoran]

The return None is implicit, so it could be omitted.