[Repo Assist] test: add SideEffects module to TaskSeq.WithCancellation.Tests.fs#410

dsyme merged 2 commits intomainfsprojects/FSharp.Control.TaskSeq:mainfrom

repo-assist/test-withcancellation-sideeffects-20260426-0dfeab7a31817c9afsprojects/FSharp.Control.TaskSeq:repo-assist/test-withcancellation-sideeffects-20260426-0dfeab7a31817c9aCopy head branch name to clipboard