v1.21.2

• Changes

  • Two Buildroot patch updates and an Erlang minor version update
  • Nerves Heart v2.0 is now included. Nerves Heart connects the Erlang runtime
    to a hardware watchdog. v2.0 has numerous updates to improve information
    that you can get and also has more safeguards to avoid conditions that could
    cause a device to hang forever.

• Updated dependencies

  • linux 5.15.78 (RPi 1.20221104)
  • nerves_system_br v1.21.6
  • Erlang/OTP 25.2
  • [Buildroot 2022.08.3](https://lore.kernel.org/buildroot/[email protected]/T/