Changes to Get the current user’s referral earn rate and 30-day volume tier progress

the response property amountToNextTier became nullable for the status 200

the response property volumeToNextTier became nullable for the status 200

response property amountToNextTier list-of-types was narrowed by removing types null from media type application/json of response 200

response property volumeToNextTier list-of-types was narrowed by removing types null from media type application/json of response 200

added the required property currentTier/minVolume30d to the response with the 200 status

added the required property nextTier/anyOf[#/components/schemas/ReferralBoostTier]/minVolume30d to the response with the 200 status

added the required property tiers/items/minVolume30d to the response with the 200 status

added the required property volume30d to the response with the 200 status

added the required property volumeToNextTier to the response with the 200 status