Update script logic for validating tag

[shaun-nx]

Proposed changes

This change updated the /hack/docker.sh script to confirm that the tag used is within the list of tags in the commit_tag variable.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov-commenter]

Codecov Report

Merging #3237 (d0f351b) into main (e0e4846) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3237      +/-   ##
==========================================
+ Coverage   52.48%   52.51%   +0.02%     
==========================================
  Files          59       59              
  Lines       16095    16095              
==========================================
+ Hits         8448     8452       +4     
+ Misses       7368     7366       -2     
+ Partials      279      277       -2     

Impacted Files	Coverage Δ
internal/k8s/configuration.go	95.76% <0.00%> (+0.36%)	⬆️

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