DKG-ready

DKG with Ethers-RS (#82)

* feat(cli): implement Board for the DKG contract's bindings

* feat(core): make Board and DKG Phase async

* feat(cli): experimental support for the DKG with ethers-rs

* use remote ethers

* ci: add Solc to PATH

https://github.com/gakonst/ethers-rs/issues/24

* ci: remove redundant build workflow

* chore: make clippy happy

* chore: cargo fmt

* fix: whitelist -> allowlist

* docs(cli): update readme

* adjust docker image to new binary

Co-authored-by: Kobi Gurkan <kobigurk@gmail.com>