Microsoft's stellar Surface Laptop is overdue for a refresh, and we just got some pretty concrete evidence that a new model is coming soon. An unreleased Surface Laptop 8th Edition with an Intel Panther Lake processor and a 13.8-inch display appeared in two Geekbench 6 listings earlier this week. The listings , which were viewed by Mashable and captured in screenshots by Notebookcheck , were removed by Thursday morning. A cached Google search result still shows one of the laptop's Geekbench 6 listings. Credit: Screenshot via Google Primate Labs' Geekbench 6 is a popular benchmark for measuring devices' CPU performance. (We run it on every laptop we review .) Geekbench 6 results are automatically uploaded to a public online database unless the user enters a paid license key. Presumably, someone at Microsoft or Intel forgot to do so before benchmarking the device in question.…