[release-1.6] Make some broker conformance tests decoratable with broker options

[knative-prow-robot]

This is an automated cherry-pick of #6517

[codecov]

Codecov Report

Merging #6519 (e184075) into release-1.6 (e5adf30) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           release-1.6    #6519   +/-   ##
============================================
  Coverage        82.03%   82.03%           
============================================
  Files              235      235           
  Lines            11713    11713           
============================================
  Hits              9609     9609           
  Misses            1634     1634           
  Partials           470      470           

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[aliok]

/cherry-pick release-1.5

[knative-prow-robot]

@aliok: once the present PR merges, I will cherry-pick it on top of release-1.5 in a new PR and assign it to you.

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In response to this:

/cherry-pick release-1.5

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[aliok]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aliok, knative-prow-robot

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• test/OWNERS [aliok]

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[knative-prow-robot]

@aliok: new pull request could not be created: failed to create pull request against knative/eventing#release-1.5 from head knative-prow-robot:cherry-pick-6519-to-release-1.5: status code 422 not one of [201], body: {"message":"Validation Failed","errors":[{"resource":"PullRequest","code":"custom","message":"No commits between knative:release-1.5 and knative-prow-robot:cherry-pick-6519-to-release-1.5"}],"documentation_url":"https://docs.github.com/rest/reference/pulls#create-a-pull-request"}

Details

In response to this:

/cherry-pick release-1.5

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.