[PM-21638] Stripe .NET v48 (#6202)

* Upgrade Stripe.net to v48.4.0

* Update PreviewTaxAmountCommand

* Remove unused UpcomingInvoiceOptionExtensions

* Added SubscriptionExtensions with GetCurrentPeriodEnd

* Update PremiumUserBillingService

* Update OrganizationBillingService

* Update GetOrganizationWarningsQuery

* Update BillingHistoryInfo

* Update SubscriptionInfo

* Remove unused Sql Billing folder

* Update StripeAdapter

* Update StripePaymentService

* Update InvoiceCreatedHandler

* Update PaymentFailedHandler

* Update PaymentSucceededHandler

* Update ProviderEventService

* Update StripeEventUtilityService

* Update SubscriptionDeletedHandler

* Update SubscriptionUpdatedHandler

* Update UpcomingInvoiceHandler

* Update ProviderSubscriptionResponse

* Remove unused Stripe Subscriptions Admin Tool

* Update RemoveOrganizationFromProviderCommand

* Update ProviderBillingService

* Update RemoveOrganizatinoFromProviderCommandTests

* Update PreviewTaxAmountCommandTests

* Update GetCloudOrganizationLicenseQueryTests

* Update GetOrganizationWarningsQueryTests

* Update StripePaymentServiceTests

* Update ProviderBillingControllerTests

* Update ProviderEventServiceTests

* Update SubscriptionDeletedHandlerTests

* Update SubscriptionUpdatedHandlerTests

* Resolve Billing test failures

I completely removed tests for the StripeEventService as they were using a system I setup a while back that read JSON files of the Stripe event structure. I did not anticipate how frequently these structures would change with each API version and the cost of trying to update these specific JSON files to test a very static data retrieval service far outweigh the benefit.

* Resolve Core test failures

* Run dotnet format

* Remove unused provider migration

* Fixed failing tests

* Run dotnet format

* Replace the old webhook secret key with new one (#6223)

* Fix compilation failures in additions

* Run dotnet format

* Bump Stripe API version

* Fix recent addition: CreatePremiumCloudHostedSubscriptionCommand

* Fix new code in main according to Stripe update

* Fix InvoiceExtensions

* Bump SDK version to match API Version

* Fix provider invoice generation validation

* More QA fixes

* Fix tests

* QA defect resolutions

* QA defect resolutions

* Run dotnet format

* Fix tests

---------

Co-authored-by: cyprain-okeke <108260115+cyprain-okeke@users.noreply.github.com>

src/Core/Billing/Models/BillingHistoryInfo.cs

@@ -1,6 +1,7 @@
 // FIXME: Update this file to be null safe and then delete the line below
 #nullable disable
 
+using Bit.Core.Billing.Constants;
 using Bit.Core.Entities;
 using Bit.Core.Enums;
 using Stripe;
@@ -46,7 +47,7 @@ public class BillingHistoryInfo
             Url = inv.HostedInvoiceUrl;
             PdfUrl = inv.InvoicePdf;
             Number = inv.Number;
-            Paid = inv.Paid;
+            Paid = inv.Status == StripeConstants.InvoiceStatus.Paid;
             Amount = inv.Total / 100M;
         }