Update bundle tests to use IP of service to avoid cluster domain rules

[pierretasci]

Changes

Fixes a regression (#3429) introduced in the Tekton Bundle tests that depended on accessing the in-cluster registry via the .cluster.local DNS syntax. This was to workaround a go-containerregistry limitation which automatically treats .local addresses as HTTP. Instead, this change uses the Service's IP in the cluster which go-containerregistry also recognizes as a situation where it should automatically use HTTP.

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Release Notes

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[tekton-robot]

Hi @pierretasci. Thanks for your PR.

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[vdemeester]

/ok-to-test

[mattmoor]

Seems simple and effective to me :)

/lgtm

[mattmoor]

/assign @afrittoli @vdemeester @imjasonh

For second set of eyes 🙏

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: vdemeester

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