Expansion of Lido's Ethereum Oracle set

[nikita.p]

Compromised Chorus One oracle address rotation

The compromised Chorus One oracle address is replaced with the new one in Vote #186. For full context, refer to the original post:

@kadmil

The immediate mitigation step is to rotate (swap the affected key UPD: 0x140Bd8FbDc884f48dA7cb1c09bE8A2fAdfea776E with a new one 0x285f8537e1dAeEdaf617e96C742F2Cf36d63CcfB ) the affected oracle