Deprecate EventType v1b1 API

[matzew]

Proposed Changes

• Deprecate EventType v1b1 API in favor of EventType v1b2 API, in release 1.12

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

- EventType.v1b1 API is deprecated. Instead use the v1b2 version. In a future release the version will be removed

Docs

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a9320dc) 76.74% compared to head (021f61f) 76.74%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7303   +/-   ##
=======================================
  Coverage   76.74%   76.74%           
=======================================
  Files         253      253           
  Lines       13916    13916           
=======================================
  Hits        10680    10680           
  Misses       2702     2702           
  Partials      534      534           

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[matzew]

/test upgrade-tests

[Cali0707]

@matzew it looks like we need to run ./hack/update-codegen.sh now that this is marked as deprecated

[matzew]

rebased...

[dsimansk]

/approve
/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dsimansk, matzew

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