Bump VERSION to 1.43.1

Diff

1.43.0...1040c2d0

Checklist

• Diff link is up-to-date.
• Check the release notes: https://gitlab.com/api/v4/projects/3430480/repository/changelog?version=1.43.1
• Based on the diff and the release notes, version.rb is updated, according to SemVer.

1.43.1 (2024-06-20)

Fixed (1 change)

• Replace labels with labelName in merge request label query (merge request)

Changed (2 changes)

• Pin httparty gem to 0.22.0 to match triage-ops's version (merge request)
• Don't ignore Gemfile.lock (merge request)