Add message and importer type to BulkImport/GitlabMigration logs

Carla Dragorequested to merge
368161-add-message-to-logs into master

What does this MR do and why?

This change is part of #368161 (closed) . It ensures a message and importer type is logged whenever a logging event occurs in Gitlab Migration.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

Related to #368161 (closed)

Merge request reports