* Change copyright year to 2023 from 2022
* Fix incorrect update of copyright year
* Remove years from copy right header
* Fix remaining files
* Fix typo in a header and remove update-copyright.sh
* Introduce `sc-network-bitswap`
Move the bitswap protocol out of `sc-network` to its own crate.
* Improve test coverage
* Remove mention of bitswap from `sc-network`
* Fix documentation
* Fix clippy and remove the void dependency
* Remove unneeded trait bound and bump prost to 0.11