bump istio and use their clientsets

[dprotaso]

• bump to istio 1.24.2
• stop generating our own istio clientset, informers and listers - use upstream
• update knative injection codegen to use istio clienset etc.

[dprotaso]

/assign @skonto

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.42%. Comparing base (21d44ac) to head (55ab141).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1399      +/-   ##
==========================================
+ Coverage   80.22%   80.42%   +0.19%     
==========================================
  Files          25       25              
  Lines        2028     2023       -5     
==========================================
  Hits         1627     1627              
+ Misses        305      300       -5     
  Partials       96       96              

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[skonto]

/lgtm
/approve

[knative-prow]

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