Rollout Git version v2.46.0

Changelog

https://about.gitlab.com/blog/2024/07/29/whats-new-in-git-2-46-0/

Steps

• Introduce the new Git version behind a feature flag (Reference).
  • Introduce the new bundled Git version in the Makefile.
  • Introduce the new bundled Git execution environment in the Git package behind a feature flag.
  • Create an issue for the rollout of the feature flag (Reference).
  • Optional: Create a change request in case the new Git version contains changes that may cause issues.
  • Roll out the feature flag.
  • Once the upgrade is deemed stable, remove the feature flag. You can do this in any release, including the release that adds the feature flag.
• Update the default Git version.
  • Remove the old bundled Git execution environment.
  • Remove the old bundled Git version in the Makefile.
  • Update the default Git distribution by updating GIT_VERSION to the new Git version in the Makefile.
• Optional: Upgrade the minimum required Git version. This is only needed when we want to start using features that have been introduced with the new Git version.
  • Update the minimum required Git version in the Git package. (Reference)
  • Update the minimum required Git version in the README.md.
  • Update the GitLab release notes to reflect the new minimum required Git version. (Reference.