Update eventing nightly

bumping knative.dev/eventing 229446d...2869c6c:
  > 2869c6c Enhance tests for v1b3 event type, new attrs (# 8197)
  > 1708881 [main] Upgrade to latest dependencies (# 8191)
  > b48b664 feat: add constructor for full event lineage graph (# 7921)
  > e79f3b6 Make auth package indepent from eventpolicy informer (# 8195)
  > ae6ed99 Fix JobSink to support AuthZ on GET too (# 8196)
  > 608e76c Add broker transformation test to upgrade tests (# 8190)
  > c91a9d8 [main] Upgrade to latest dependencies (# 8189)

Signed-off-by: Knative Automation <automation@knative.team>