Increase gateway memory limit

[ReToCode]

Changes

• Increase 3scale-kourier-gateway memory limit

Fixes knative/serving#15052

Release Note

The default memory limit of 3scale-kourier-gateway was increased to prevent OOMKilled on peak load scenarios

[knative-prow]

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[ReToCode]

/assign @skonto

Tested in knative/serving#15060.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.31%. Comparing base (3655396) to head (6da3cc4).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1236      +/-   ##
==========================================
+ Coverage   60.63%   62.31%   +1.67%     
==========================================
  Files          24       24              
  Lines        2002     1632     -370     
==========================================
- Hits         1214     1017     -197     
+ Misses        726      553     -173     
  Partials       62       62              

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[skonto]

/lgtm

[skonto]

Do we know why we need this increase (besides flakes), what is the root cause of the overhead?

[ReToCode]

That we added more stuff to encryption, we are definitely creating more envoy config with this (thus, just the tls test were flaky).