[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 6f0b49f...f547a2b:
  > f547a2b Update community files (# 1285)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.48%. Comparing base (3c5f2f6) to head (34c68f2).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15501      +/-   ##
==========================================
+ Coverage   84.45%   84.48%   +0.02%     
==========================================
  Files         219      219              
  Lines       13608    13608              
==========================================
+ Hits        11493    11497       +4     
+ Misses       1742     1740       -2     
+ Partials      373      371       -2     

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[skonto]

/lgtm
/approve

[knative-prow]

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