Bump the rf24-submodules group with 3 updates

Bumps the rf24-submodules group with 3 updates: [RF24](https://github.com/nRF24/RF24), [RF24Network](https://github.com/nRF24/RF24Network) and [RF24Mesh](https://github.com/nRF24/RF24Mesh).


Updates `RF24` from `3bbcce8` to `8aa7103`
- [Release notes](https://github.com/nRF24/RF24/releases)
- [Commits](nRF24/RF24@3bbcce8...8aa7103)

Updates `RF24Network` from `81efd92` to `fd8126a`
- [Release notes](https://github.com/nRF24/RF24Network/releases)
- [Commits](nRF24/RF24Network@81efd92...fd8126a)

Updates `RF24Mesh` from `5fb9aeb` to `7baf483`
- [Release notes](https://github.com/nRF24/RF24Mesh/releases)
- [Commits](nRF24/RF24Mesh@5fb9aeb...7baf483)

---
updated-dependencies:
- dependency-name: RF24
  dependency-type: direct:production
  dependency-group: rf24-submodules
- dependency-name: RF24Network
  dependency-type: direct:production
  dependency-group: rf24-submodules
- dependency-name: RF24Mesh
  dependency-type: direct:production
  dependency-group: rf24-submodules
...

Signed-off-by: dependabot[bot] <[email protected]>