Update eventtype CRD to include .spec.reference.address

[creydr]

Currently we see on some eventtype tests the following warnings in the dispatcher:

{"level":"warn","ts":"2024-05-22T17:19:09.574Z","logger":"inmemorychannel-dispatcher","caller":"logging/warning_handler.go:32","msg":"API Warning: unknown field \"spec.reference.address\"","commit":"0e14da4-dirty","knative.dev/pod":"imc-dispatcher-59cb79846b-vbsgx"}

This PR addresses it and adds the address field to the CRD, as described in https://github.com/knative/pkg/blob/99e1685a799787390ad8cb32bce249173cfda7a6/apis/duck/v1/knative_reference.go#L29-L56

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.51%. Comparing base (7e1c082) to head (b5af2d3).
Report is 56 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7935      +/-   ##
==========================================
+ Coverage   69.22%   69.51%   +0.28%     
==========================================
  Files         339      344       +5     
  Lines       19494    15996    -3498     
==========================================
- Hits        13494    11119    -2375     
+ Misses       5337     4191    -1146     
- Partials      663      686      +23     

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[Cali0707]

/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Cali0707, creydr

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