[Automated] Update net-kourier nightly

[knative-automation]

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

Produced via:

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

Details:

bumping knative.dev/net-kourier a5ace2b...50feeb8:
  > 50feeb8 upgrade to latest dependencies (# 1270)

[knative-prow[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: knative-automation Once this PR has been reviewed and has the lgtm label, please assign davidhadas for approval. For more information see the Kubernetes Code Review Process.

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Needs approval from an approver in each of these files: - **[OWNERS](https://github.com/knative/serving/blob/main/OWNERS)** Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[codecov[bot]]

Codecov Report

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

Project coverage is 84.63%. Comparing base (a3ee9b8) to head (34545c5). Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #15384 +/- ## ========================================== + Coverage 84.61% 84.63% +0.01% ========================================== Files 219 219 Lines 13587 13587 ========================================== + Hits 11497 11499 +2 + Misses 1724 1722 -2 Partials 366 366 ```

:umbrella: View full report in Codecov by Sentry.
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[ReToCode]

/test kourier-stable