Marlin 2.1.2.5

This is a minor release bringing over some changes from the latest development branch. Configurations have been patched up to allow for a more complete binary deployment.

Example Configurations for many machines are posted at:
https://github.com/MarlinFirmware/Configurations/tree/release-2.1.2.5

Binaries of this release can be found at:
https://github.com/MarlinFirmware/MarlinBuilds/tree/release-2.1.2.5

Full Changelog: 2.1.2.4...2.1.2.5

Changes

• 🩹 Fix STM32 CPU serial UUID (#26715, #26727, #26737)
• 🐛 Fix skipping of G2/G3 E-only moves
• 🐛 Update and patch some pins files
• 📝 Update some config links and defaults
• 🔨 Update build and other supporting scripts
• 🔨 Add mega1281 specific build environment
• 🔨 Update to the newest Simulator
• 🧑‍💻 Update to the newest Pins Debugging