receipt["cancellation_date"] != nil, always return .notPurchased

[kongyuluEleven]

Bug Report

when user buy a autoRenewable product ,the product has not expire, when user cancel the autoRenewable , the restore buy call verifySubscriptions() function always return .notPurchased

To Reproduce
Steps to reproduce the behavior:

1. Step one...

Expected behavior
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Platform Information

• OS: [e.g. iOS 13.4, watchOS 6.2.1, tvOS 9.2.3, macOS 10.14.3, Catalyst 13.0]
• Purchase Type: [e.g. consumable, non-consumable, auto-renewable subscription, non-renewing subscription, discount]
• Environment: [e.g. sandbox, app review, production]
• SwiftyStoreKit version: [e.g. 0.16]

Additional context

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Potentially Related Issues

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Screenshots
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class func verifySubscriptions(
    ofType type: SubscriptionType,
    productIds: Set<String>,
    inReceipt receipt: ReceiptInfo,
    validUntil date: Date = Date()
) -> VerifySubscriptionResult {

    // The values of the latest_receipt and latest_receipt_info keys are useful when checking whether an auto-renewable subscription is currently active. By providing any transaction receipt for the subscription and checking these values, you can get information about the currently-active subscription period. If the receipt being validated is for the latest renewal, the value for latest_receipt is the same as receipt-data (in the request) and the value for latest_receipt_info is the same as receipt.
    let (receipts, duration) = getReceiptsAndDuration(for: type, inReceipt: receipt)
    let receiptsInfo = filterReceiptsInfo(receipts: receipts, withProductIds: productIds)
    let nonCancelledReceiptsInfo = receiptsInfo.filter { receipt in receipt["cancellation_date"] == nil }
    if nonCancelledReceiptsInfo.count == 0 {
        return .notPurchased
    }