[Automated] Update net-istio nightly

[knative-automation]

/assign @knative/serving-writers /cc @knative/serving-writers

Produced via:

for x in net-istio.yaml; do
  curl https://storage.googleapis.com/knative-nightly/net-istio/latest/$x > ${GITHUB_WORKSPACE}/./third_party/istio-latest/$x
done

Details:

bumping knative.dev/net-istio be4f06e...01930f2:
  > 01930f2 Remove useless if (# 1346)

[knative-prow[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.60%. Comparing base (8a99187) to head (cbbd51b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #15401 +/- ## ========================================== + Coverage 84.58% 84.60% +0.02% ========================================== Files 219 219 Lines 13587 13587 ========================================== + Hits 11492 11495 +3 + Misses 1727 1725 -2 + Partials 368 367 -1 ```

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