Change log for REDHAT_OPENSHIFT

Date Changes
2025-08-13 Enhancement:
- Modified Grok pattern to extract observer_hostname.
- event.idm.read_only_udm.observer.hostname: Newly mapped observer_hostname raw log field with event.idm.read_only_udm.observer.hostname UDM field.
- event.idm.read_only_udm.metadata.collected_timestamp: Newly mapped requestReceivedTimestamp raw log field with event.idm.read_only_udm.metadata.collected_timestamp UDM field.
- event.idm.read_only_udm.target.resource.attribute.labels: Newly mapped user.extra.authentication.kubernetes.io/pod-name, user.extra.authentication.kubernetes.io/pod-uid raw log field(s) with event.idm.read_only_udm.target.resource.attribute.labels UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped openshift.sequence raw log field with event.idm.read_only_udm.additional.fields UDM field.
2025-06-17 Enhancement:
- event.idm.read_only_udm.observer.hostname: Newly mapped `app_name` raw log field to `event.idm.read_only_udm.observer.hostname` UDM Field.
- event.idm.read_only_udm.additional.fields: Newly mapped `facility` raw log field to `event.idm.read_only_udm.additional.fields` UDM Field.
- event.idm.read_only_udm.observer.resource.name: Newly mapped `log_source` raw log field to `event.idm.read_only_udm.observer.resource.name` UDM Field.
2025-03-03 Enhancement:
- Added support for a new log format.
2024-12-12 Enhancement:
- Added support to handle JSON logs.
2022-08-17 Newly created parser