Fix cilium's hubble ui configuration

[j4m3s-s]

This fixes the CrashLoopBackoff error that appears because envoy configuration has changed a lot and upstream removed the envoy proxy to use nginx only instead. Those changes are based on upstream cilium helm.

What type of PR is this?

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/kind api-change
/kind bug
/kind cleanup
/kind design
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/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:

Which issue(s) this PR fixes:
Fixes #9567

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Fix cilium's hubble ui configuration

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[yankay]

/ok-to-test

[yankay]

Thanks @j4m3s-s
/lgtm

[floryut]

@j4m3s-s Thank you for the PR 🚀

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floryut, j4m3s-s

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