fix: use errors.New instead of fmt.Errorf

Signed-off-by: Jesse Simpson <jesse.simpson36@gmail.com>

pkg/engine/engine.go

@@ -408,7 +408,7 @@ func reformatExecErrorMsg(filename string, err error) error {
 		fmt.Fprintf(&finalErrorString, "%s", fileLocation.String())
 	}
 
-	return fmt.Errorf("%s", finalErrorString.String())
+	return errors.New(finalErrorString.String())
 }
 
 func sortTemplates(tpls map[string]renderable) []string {