(OBC) esp32c3 and `defmt` logging linker issue

After recent upgrade on `esp-hal` and related crates, when adding support for `RP23xx`, the defmt symbols under the `onboard-computer` get linked twice and lead to error.

The related to the upgrade branch: https://github.com/AeroRust/nanosat-workshop/tree/feat/support-rp23xx

```
warning: Linking globals named '_defmt_acquire': symbol multiply defined!

error: failed to load bitcode of module "esp_println-9a7d363ad24422e9.esp_println.d923df256bce0a99-cgu.0.rcgu.o":
```