Bump RF24Network from a334fa6 to 2b3b000

Bumps [RF24Network](https://github.com/nRF24/RF24Network) from `a334fa6` to `2b3b000`.
- [Release notes](https://github.com/nRF24/RF24Network/releases)
- [Commits](nRF24/RF24Network@a334fa6...2b3b000)

---
updated-dependencies:
- dependency-name: RF24Network
  dependency-type: direct:production
...

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