[release-1.14] Update test dialer to use ip when available

[knative-prow-robot]

This is an automated cherry-pick of #970

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ No coverage uploaded for pull request base (release-1.14@a40d058). Click here to learn what that means.

Additional details and impacted files

@@               Coverage Diff               @@
##             release-1.14     #971   +/-   ##
===============================================
  Coverage                ?   93.41%           
===============================================
  Files                   ?       36           
  Lines                   ?     1003           
  Branches                ?        0           
===============================================
  Hits                    ?      937           
  Misses                  ?       53           
  Partials                ?       13           

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[dprotaso]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[dprotaso]

Downstream actions don't work when the downstream doesn't have the same branches

/override "Unit Test (knative/serving)"
/override "Unit Test (knative-extensions/net-certmanager)"
/override "Unit Test (knative-extensions/net-istio)"
/override "Unit Test (knative-extensions/net-contour)"
/override "Unit Test (knative-extensions/net-kourier)"

[knative-prow]

@dprotaso: Overrode contexts on behalf of dprotaso: Unit Test (knative-extensions/net-certmanager), Unit Test (knative-extensions/net-contour), Unit Test (knative-extensions/net-istio), Unit Test (knative-extensions/net-kourier), Unit Test (knative/serving)

In response to this:

Downstream actions don't work when the downstream doesn't have the same branches

/override "Unit Test (knative/serving)"
/override "Unit Test (knative-extensions/net-certmanager)"
/override "Unit Test (knative-extensions/net-istio)"
/override "Unit Test (knative-extensions/net-contour)"
/override "Unit Test (knative-extensions/net-kourier)"

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