### Describe the bug src/M5StamPLC.cpp misses the 250k setting for CAN bus speed selection ### To reproduce . ### Expected behavior . ### Screenshots _No response_ ### Environment - OS: - IDE &IDE Version: - Repository Version: ### Additional context _No response_ ### Issue checklist - [x] I searched for previous reports in [the issue tracker](https://github.com/m5stack/M5StamPLC/issues?q=) - [x] My report contains all necessary details