Update eventing nightly

bumping knative.dev/eventing 5828b49...e70d08b:
  > e70d08b [main] Upgrade to latest dependencies (# 8752)
  > 3f59df1 feat: Supporting using pod default credentials for Integration Source and Sink (# 8731)
  > 9fe13ee  chore: update otel semconv version (# 8753)
  > 8f709d0 [main] Upgrade to latest dependencies (# 8751)

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

Author: knative-automation