What's Changed

• testscript: add pty/ptyout commands by @FiloSottile in https://github.com/rogpeppe/go-internal/pull/172
• bump to Go 1.21, drop Go 1.19, propagate GORACE in testscript by @mvdan in https://github.com/rogpeppe/go-internal/pull/235
• use filepath.WalkDir, add TestScript.Name by @mvdan in https://github.com/rogpeppe/go-internal/pull/236
• robustio: copy from cmd/go/internal/robustio by @rogpeppe in https://github.com/rogpeppe/go-internal/pull/239

Full Changelog: https://github.com/rogpeppe/go-internal/compare/v1.11.0...v1.12.0