Version 1.2.1

• Align to ArduinoBLE 1.2.1
• Fix to remove specific include. Correct CMSIS device header already included by the core.
• examples: add STM32WB5MM-DK support

What's Changed

• examples: add STM32WB5MM-DK support by @fpistm in #32

Full Changelog: 1.2.0...1.2.1