STM32dunio LwIP 2.1.3

What's Changed

• chore: update to v2.1.3_230818 modified by ST by @fpistm in #8

Important note:

• Remove support of the cmsis_os1 API and keep only cmsis_os2.

New Contributors

• @fpistm made their first contribution in #8

Full Changelog: 2.1.2...2.1.3