Enchance debug information when e2e fails: add istioctl proxy status

[fjglira]

What type of PR is this?

• Enhancement / New Feature
• Bug Fix
• Refactor
• Optimization
• Test
• Documentation Update

What this PR does / why we need it:

Adding the print of istioctl proxy status when control plane related test fails, this will help debugging errors like proxy version mistmatch, errors pod not found, etc. It will print something like this:

  =====Istioctl Proxy Status=====:
    NAME                                      CLUSTER        CDS             LDS             EDS             RDS             ECDS        ISTIOD                                      VERSION
    helloworld-v1-6bcd6bdf6f-5rw6b.sample     Kubernetes     SYNCED (1s)     SYNCED (1s)     SYNCED (1s)     SYNCED (1s)     IGNORED     istiod-default-v1-25-3-6d4f4bcd99-8r74g     1.25.3
  =========================================================

Which issue(s) this PR fixes:

Fixes #

Related Issue/PR #

Additional information:

[MaxBab]

More debug info is always good!
LGTM from me.

Unfortunately, I don't have any approve rights.
But a +1 from me. :)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.31%. Comparing base (e42d3cd) to head (88d178f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #891      +/-   ##
==========================================
+ Coverage   76.16%   76.31%   +0.14%     
==========================================
  Files          44       44              
  Lines        2685     2685              
==========================================
+ Hits         2045     2049       +4     
+ Misses        546      543       -3     
+ Partials       94       93       -1     

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[istio-testing]

In response to a cherrypick label: new pull request created: #895

[istio-testing]

In response to a cherrypick label: new pull request could not be created: failed to create pull request against istio-ecosystem/sail-operator#release-1.26 from head istio-testing:cherry-pick-891-to-release-1.26: status code 422 not one of [201], body: {"message":"Validation Failed","errors":[{"resource":"PullRequest","code":"custom","message":"No commits between istio-ecosystem:release-1.26 and istio-testing:cherry-pick-891-to-release-1.26"}],"documentation_url":"https://docs.github.com/rest/pulls/pulls#create-a-pull-request","status":"422"}

[istio-testing]

In response to a cherrypick label: new pull request created: #898