ci: refactor script for resolving lockfile versions

[jescalada]

Description

Follow-up for the last bumper workflow fix PR (#1671) which still errored out.

Related Issue

Resolves #

Checklist

General

• I have read the CONTRIBUTING.md guidelines
• Commit messages follow Conventional Commits format
• I have a FINOS CLA on file

Documentation

• Documentation has been added/updated for any new features

Configuration

• If configuration schema (config.schema.json) was modified:
  • TypeScript types regenerated (npm run generate-config-types)
  • Schema reference docs regenerated (npm run gen-schema-doc)

Tests

• Tests have been added/updated for new functionality
• Unit tests pass (npm test)
• Linting and formatting pass (npm run lint and npm run format:check)
• Type checks pass (npm run check-types)

[netlify]

✅ Deploy Preview for endearing-brigadeiros-63f9d0 canceled.

Name	Link
🔨 Latest commit	aaca109
🔍 Latest deploy log	https://app.netlify.com/projects/endearing-brigadeiros-63f9d0/deploys/6a7c7e9ecf0cc800079cdb52

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.26%. Comparing base (2696ca4) to head (aaca109).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1673   +/-   ##
=======================================
  Coverage   90.26%   90.26%           
=======================================
  Files          89       89           
  Lines        8896     8896           
  Branches     1657     1657           
=======================================
  Hits         8030     8030           
  Misses        834      834           
  Partials       32       32           

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[fabiovincenzi]

Looks good!