devel/interactive_rebase_tool: Update to 2.4.0

ChangeLog:
https://github.com/MitMaro/git-interactive-rebase-tool/releases/tag/2.4.0

Added

• Add support for NO_COLOR environment variable
• Post modified line exec command

Changed

• List search now uses a shared search thread

Fixed

• Fixed TTY support on macOS
• Flicker when action width changes
• Selected line was not always visible when multiple lines were selected
• Selected line hidden by added trailing, leading or header line when view was not resized

PR: 279760
Reported by: petteri.valkonen@iki.fi (maintainer)