Good morning,
we are planning to update the ninja version that update-checkout fetches for main, rebranch and next schemes -- namely going [from 1.11.1 to 1.13.1](https://github.com/swiftlang/swift/pull/84172).
This will not affect configurations where a prebuilt ninja is available in the search path (like most of CI) -- in this case we only require its version to be 1.8.2 or newer.
We are planning to proceed with the update next week, so to give a chance to users and downstream adopters to assess the change in advance.