Log raw pre receive error for create branch service

What does this MR do?

Log raw pre receive error for create branch service so we can debug what went wrong in #233838 (closed)

Related issue: #233838 (closed)

Screenshots

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.