YIP103: Update Mainnet Multisig

Summary

This proposal is to approve an update on the mainnet multisig.

Abstract

Krugman and Nate are currently busy and occupied with other things, they will not be very much active for signing, we would want to have Feddas as a replacement for signing.

Specification

Proceeding with a multisig vote between the currently assigned signers for adding Feddas instead of Krugman and Nate.