[Feature] Add script to clean up golden AMIs in AWS regions where we're at our quota for public images

[AlexVulaj]

What does this PR do? / Related Issues / Jira

Adds a Go script to clean up our Golden AMIs in regions where we've hit our quota.

Checklist

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have tested the functionality against gcp / aws, it doesn't cause any regression
• I have added execution results to the PR's readme

How to test this PR locally / Special Instructions

First, make sure you have AWS credentials for the target account. Then cd into cleangoldenami, run go build, then run the executable (preferably with --dry-run and --verbose)

Logs

Region af-south-1 is under quota. (Images: 13, Quota: 20)
Region ap-east-1 is under quota. (Images: 14, Quota: 20)
Region ap-northeast-1 is under quota. (Images: 14, Quota: 20)
Region ap-northeast-2 is under quota. (Images: 13, Quota: 20)
Region ap-northeast-3 is under quota. (Images: 14, Quota: 20)
Region ap-south-1 is under quota. (Images: 14, Quota: 20)
Region ap-south-2 is under quota. (Images: 8, Quota: 20)
Region ap-southeast-1 is under quota. (Images: 15, Quota: 20)
Region ap-southeast-2 is under quota. (Images: 13, Quota: 20)
Region ap-southeast-3 is under quota. (Images: 13, Quota: 20)
Region ap-southeast-4 is under quota. (Images: 8, Quota: 20)
Region ca-central-1 is under quota. (Images: 13, Quota: 20)
Region eu-central-1 is at quota (10) - would delete ami-08eca5bab97189074
Region eu-central-2 is under quota. (Images: 8, Quota: 20)
Region eu-north-1 is under quota. (Images: 9, Quota: 20)
Region eu-south-1 is under quota. (Images: 12, Quota: 20)
Region eu-south-2 is under quota. (Images: 7, Quota: 20)
Region eu-west-1 is under quota. (Images: 13, Quota: 20)
Region eu-west-2 is under quota. (Images: 14, Quota: 20)
Region eu-west-3 is under quota. (Images: 14, Quota: 20)
Region me-central-1 is under quota. (Images: 6, Quota: 20)
Region me-south-1 is under quota. (Images: 12, Quota: 20)
Region sa-east-1 is under quota. (Images: 13, Quota: 20)
Region us-east-1 is under quota. (Images: 11, Quota: 20)
Region us-east-2 is under quota. (Images: 15, Quota: 20)
Region us-west-1 is under quota. (Images: 12, Quota: 20)
Region us-west-2 is under quota. (Images: 14, Quota: 20)
Done!

[AlexVulaj]

/hold

I'd like to add unit tests and a README still, but the functional code is ready for review.

[AlexVulaj]

/unhold

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 15.24%. Comparing base (6907dda) to head (06888b0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #230   +/-   ##
=======================================
  Coverage   15.24%   15.24%           
=======================================
  Files          17       17           
  Lines        1358     1358           
=======================================
  Hits          207      207           
  Misses       1137     1137           
  Partials       14       14           

[openshift-ci]

@AlexVulaj: all tests passed!

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[abyrne55]

Tested locally with --dry-run and saw expected results. Also ran go test and visually reviewed code. Nice work @AlexVulaj

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: abyrne55

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[luis-falcon]

/lgtm