v3.0.8: Update return types for getFuturesHistoricFundingRates & getFuturesCurrentFundingRate

What's Changed

• chore(): upd getFuturesHistoricFundingRates and getFuturesCurrentFundingRate responses by @lutogin in #100
• fix(v3.0.8, #100): update getFuturesHistoricFundingRates and getFuturesCurrentFundingRate return types by @tiagosiebler in #101

New Contributors

• @lutogin made their first contribution in #100

Full Changelog: v3.0.7...v3.0.8