fix: Fix bytes being converted incorrectly in declare_program!

[cryptopapi997]

declare_program! converts bytes in the idl to the type bytes in rust. This type doesn't exist, so we switch to converting it to a Vec<u8>

[vercel]

@cryptopapi997 is attempting to deploy a commit to the coral-xyz Team on Vercel.

A member of the Team first needs to authorize it.

[acheroncrypto]

Thanks!