Background

We don't really care when carrying bot commits (eg the ART ones) about the incremental changes they bring in.

It would be better if the bot could identify all commits from a bot and squash those together, then the ART changes would always be a single carried commit.

Steps

• Add a flag to allow bot squashing
• Squash commits from bots named in the bot squashing flag

Stakeholders

• Cluster infra

Definition of Done

• Future rebases only include a single ART bot commit to be carried

• Docs

• N/A

• Testing

• N/A