[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 64bc6c7...ab5178a:%0A  > ab5178a Update actions (# 1082)%0A  > b9ba011 upgrade to latest dependencies (# 1089)

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.08 🎉

Comparison is base (23f7e2b) 86.21% compared to head (59fac54) 86.29%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #13852      +/-   ##
==========================================
+ Coverage   86.21%   86.29%   +0.08%     
==========================================
  Files         198      198              
  Lines       14669    14669              
==========================================
+ Hits        12647    12659      +12     
+ Misses       1722     1713       -9     
+ Partials      300      297       -3     

see 4 files with indirect coverage changes

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[psschwei]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: knative-automation, psschwei

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