chore(deps): update istio/istioctl docker tag to v1.30.3

[renovate]

This PR contains the following updates:

Package	Update	Change
istio/istioctl	patch	1.30.0 → 1.30.3

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.2%. Comparing base (21fec8b) to head (513fdeb).

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #7965     +/-   ##
=======================================
- Coverage   80.5%   74.2%   -6.3%     
=======================================
  Files        222     222             
  Lines      20992   20992             
=======================================
- Hits       16910   15594   -1316     
- Misses      3016    4372   +1356     
+ Partials    1066    1026     -40     

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