Allow webhook failure policies to be configured

[josh-ferrell]

Issue

#2711

Description

Allows the end user to set the failurePolicy value to Ignore. This ensures resource creation can proceed when the aws-lb-controller is not functioning or responding within the webhook timeout.

Checklist

• [X] Added tests that cover your change (if possible)
• [X] Added/modified documentation as required (such as the README.md, or the docs directory)
• [X] Manually tested
• [X] Made sure the title of the PR is a good description that can go into the release notes

BONUS POINTS checklist: complete for good vibes and maybe prizes?! :exploding_head:

• [ ] Backfilled missing tests for code in same general area :tada:
• [ ] Refactored something and made the world a better place :star2:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[josh-ferrell]

@oliviassss or @johngmyers let me know if this PR needs any clarification

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 17.83%. Comparing base (32a3339) to head (df135c3). Report is 6 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #3561       +/-   ##
===========================================
- Coverage   55.35%   17.83%   -37.53%     
===========================================
  Files         149      175       +26     
  Lines        8971    29046    +20075     
===========================================
+ Hits         4966     5180      +214     
- Misses       3666    23527    +19861     
  Partials      339      339               

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[josh-ferrell]

/retest

[k8s-ci-robot]

PR needs rebase.

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[josh-ferrell]

Closing as it looks like this was addressed in #3653

[bacek]

#3653 is changing failurePolicy only on a single webhook. Comparing to this PR which fixes all of them.