chore: move attestation-provider-server crate from proxy repo#17

steph-rs wants to merge 2 commits intoflashbots:mainflashbots/attested-tls:mainfrom

steph-rs:steph-rs/chore/move-attestation-provider-serversteph-rs/attested-tls:steph-rs/chore/move-attestation-provider-serverCopy head branch name to clipboard