FUSDC: add oracle operators to highPrioritySenders

[0xpatrickdev]

What is the Problem Being Solved?

highPrioritySendersManager exists for things like Inter Price Oracles. It seems beneficial to grant the FUSDC oracle operators the same priviledge.

Description of the Design

A la Inter Protocol:

agoric-sdk/packages/inter-protocol/src/proposals/replaceElectorate.js

Lines 59 to 89 in 355a2e1

	const handlehighPrioritySendersList = async (
	{ consume: { highPrioritySendersManager: highPrioritySendersManagerP } },
	{ options: { highPrioritySendersConfig } },
	) => {
	const HIGH_PRIORITY_SENDERS_NAMESPACE = 'economicCommittee';
	const highPrioritySendersManager = await highPrioritySendersManagerP;
	if (!highPrioritySendersManager) {
	throw assert.error(`highPrioritySendersManager is not defined`);
	}
	const { addressesToAdd, addressesToRemove } = highPrioritySendersConfig;
	await Promise.all(
	addressesToAdd.map(addr =>
	E(highPrioritySendersManager).add(
	HIGH_PRIORITY_SENDERS_NAMESPACE,
	traced('High Priority Senders: adding', addr),
	),
	),
	);
	await Promise.all(
	addressesToRemove.map(addr =>
	E(highPrioritySendersManager).remove(
	HIGH_PRIORITY_SENDERS_NAMESPACE,
	traced('High Priority Senders: removing', addr),
	),
	),
	);
	};

Security Considerations

highPrioritySendersManager carries authority

Scaling Considerations

Test Plan

TBD - is verifying in vstorage sufficient?

Upgrade Considerations

TBD - depending when this is planned, and if it will be in owns CoreEval Proposal or a chain software upgrade.