chore: Bump realm scheme version

Author: Ambrdctr

MailCore/Cache/MailboxManager/MailboxManager.swift

@@ -75,7 +75,7 @@ public final class MailboxManager: ObservableObject, MailboxManageable {
         let realmName = "\(mailbox.userId)-\(mailbox.mailboxId).realm"
         realmConfiguration = Realm.Configuration(
             fileURL: MailboxManager.constants.rootDocumentsURL.appendingPathComponent(realmName),
-            schemaVersion: 41,
+            schemaVersion: 42,
             migrationBlock: { migration, oldSchemaVersion in
                 // No migration needed from 0 to 16
                 if oldSchemaVersion < 17 {