Add "rawBody" also for xml requests

Editor assessment

The subject states the change precisely: rawBody is now populated for XML requests as well. A reader knows exactly what was extended and can infer the motivation, webhook or middleware code needing the raw payload for XML content types, without the diff. The fix type and core scope are accurate. No body appears, and one line on what broke without it would have added value, but the subject carries the essential fact for a small change. The PR reference is well formed. Style is clean apart from the house-permitted capital. Clear, specific, and honest: a good small-fix message.