[Automated] Update backstage-plugins-eventing nightly (#123)

Update eventing nightly

bumping knative.dev/eventing 63d4da5...ebe99e6:
  > ebe99e6 Introducing common integration helper and change package name (# 8327)
  > 201e096 [main] Format Go code (# 8334)
  > 6f5edf5 [main] Upgrade to latest dependencies (# 8328)
  > f21370a Integration Api moved to versioned common (# 8325)

Signed-off-by: Knative Automation <[email protected]>