Enable race testing in validation

cmd/releasekit/main.go

@@ -139,6 +139,7 @@ func candidateRequest(invocation cli.Invocation, settings cli.Settings, output i
 		Product:       settings.Product,
 		Version:       invocation.Version,
 		Remote:        settings.Remote,
+		Validation:    validationSpec(settings.Validation),
 		Build:         configuredBuildSpec(settings.Build),
 		Output:        output,
 	}
@@ -154,6 +155,15 @@ func candidateRequest(invocation cli.Invocation, settings cli.Settings, output i
 	return request
 }
 
+func validationSpec(settings *cli.ValidationSettings) releasekit.ValidationSpec {
+	if settings == nil {
+		return releasekit.ValidationSpec{}
+	}
+	return releasekit.ValidationSpec{
+		Go: releasekit.GoValidationSpec{Race: settings.Go.Race},
+	}
+}
+
 func candidateFailureText(err error) string {
 	return err.Error()
 }