Fix condition in release draft step

[ciarams87]

Proposed changes

Fixes: https://github.com/nginx/nginx-gateway-fabric/actions/runs/18590668253/job/53005126392

Closes #ISSUE

Checklist

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• 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

Release notes

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please add a brief note that summarizes the change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.59%. Comparing base (25e8e5b) to head (7d0e124).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4101      +/-   ##
==========================================
- Coverage   86.62%   86.59%   -0.04%     
==========================================
  Files         131      131              
  Lines       17794    17794              
  Branches       74       74              
==========================================
- Hits        15414    15408       -6     
- Misses       2182     2186       +4     
- Partials      198      200       +2     

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