Change log for MICROSOFT_CASB

Date Changes
2025-03-26 Enhancement:
- Modified and added Grok pattern to parse different time formats.
- Added a conditional check when mapping suser to principal.user.userid.
- Mapped uniqueServiceAppIds to target.resource.id.
- Added a conditional check before setting metadata.event_type to USER_LOGIN and renaming event.idm.read_only_udm.principal.user to event.idm.read_only_udm.target.user.
- Added a conditional check before setting metadata.event_type to USER_RESOURCE_CREATION , USER_RESOURCE_UPDATE_CONTENT and RESOURCE_READ.
- Added a user_display_name null check before mapping user_display_name to principal.user.userid.
- Added on error when mapping suser to principal.user.userid and principal.user.user_display_name.
2023-11-27 Enhancement:
- Handled unparsed JSON logs.
2023-06-28 Enhancement:
- Enhanced parser to set the metadata.event_type to a more specific value and reduce the number of logs with GENERIC_EVENT for metadata.event_type.