Don't return keyId from generateTestKeys

[wilsonianb]

The returned publicKey includes kid

rafiki/packages/auth/src/tests/signature.ts

Lines 32 to 36 in d73f7d6

	export async function generateTestKeys(): Promise<{
	keyId: string
	publicKey: JWKWithRequired
	privateKey: JWKWithRequired
	}> {

• feat(http-signature-utils): move http signature related code to this package #797 (comment)

(Wait for 👆 to be merged)