Incompatible use of nonisolated(unsafe) with Swift 5.9 #843
Description
My workflow is stumbling over the keyword nonisolated(unsafe), which IIRC was introduced with 5.10, but my test runner runs on 5.9.2.
It fetches the version 1.26.0, which has declared 5.9 as its swift tools version.
E. g. it will be used in HTTPClient+HTTPCookie.swift on L219.