Development updates Week 6

• Added support for holesky testnet :
  https://github.com/ralexstokes/mev-rs
  https://github.com/ralexstokes/ethereum-consensus/pull/218

• Worked on some simple issues on rust-libp2p:
  https://github.com/libp2p/rust-libp2p/pull/4454
  https://github.com/libp2p/rust-libp2p/pull/4445
  https://github.com/libp2p/rust-libp2p/pull/4409