Change how flipping features creates Geo event

What does this MR do?

To make sure a Geo event is created when a Feature Flag is flipped on instance level, refactor the code how where the #log_geo_event call is hooked in the Flipper code.

Closes #247535 (closed)

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content