Autocreated eventtypes reference trigger when the event is a reply

[Cali0707]

Fixes #7698

Proposed Changes

• Add eventtype autocreate handler to filter handler
• Use the autocreate handler to create a new eventtype when there is a reply

Pre-review Checklist

• [ ] At least 80% unit test coverage
• [ ] E2E tests for any new behavior
• [ ] Docs PR for any user-facing impact
• [ ] Spec PR for any new API feature
• [ ] Conformance test for any change to the spec

Release Note

EventTypes are now autocreated referencing the trigger when an event is a reply to the trigger

Docs

[knative-prow[bot]]

Skipping CI for Draft Pull Request. If you want CI signal for your change, please convert it to an actual PR. You can still manually trigger a test run with /test all

[knative-prow[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Cali0707

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 17.24138% with 24 lines in your changes are missing coverage. Please review.

Project coverage is 68.97%. Comparing base (a154f1a) to head (2dc5f5f).

Files	Patch %	Lines
cmd/broker/filter/main.go	0.00%	14 Missing :warning:
pkg/broker/filter/filter_handler.go	33.33%	9 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7710      +/-   ##
==========================================
- Coverage   69.04%   68.97%   -0.08%     
==========================================
  Files         338      338              
  Lines       19350    19375      +25     
==========================================
+ Hits        13360    13363       +3     
- Misses       5328     5349      +21     
- Partials      662      663       +1     

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[Cali0707]

/cc @pierDipi @matzew @Leo6Leo @dsimansk

[Cali0707]

/hold

[knative-prow[bot]]

@Cali0707: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
reconciler-tests_eventing_main	2dc5f5f7f28e74fd5f5a5e017d722d79e7e9ed44	link	true	/test reconciler-tests

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[pierDipi]

Afaik, superseded by https://github.com/knative/eventing/pull/7733, we can reopen if needed