Deprecate `AddRequestDataToEventOptions.transaction`

[lforst]

Description

This option does not make much sense nowadays. Maybe evaluate how we can clean up AddRequestDataToEventOptions in general. It is currently exported as public API.

[github-actions]

A PR closing this issue has just been released 🚀

This issue was referenced by PR #14306, which was included in the 8.39.0 release.