Fix iOS Firebase add not working

Author: Daeda88

firebase-firestore/src/iosMain/kotlin/dev/gitlive/firebase/firestore/firestore.kt

@@ -282,9 +282,9 @@ actual class CollectionReference(override val ios: FIRCollectionReference) : Que
         DocumentReference(await { ios.addDocumentWithData(encode(data, encodeDefaults) as Map<Any?, *>, it) })
 
     actual suspend fun <T> add(data: T, strategy: SerializationStrategy<T>, encodeDefaults: Boolean) =
-        DocumentReference(await { ios.addDocumentWithData(encode(strategy, data, encodeDefaults) as Map<Any?, *>) })
+        DocumentReference(await { ios.addDocumentWithData(encode(strategy, data, encodeDefaults) as Map<Any?, *>, it) })
     actual suspend fun <T> add(strategy: SerializationStrategy<T>, data: T, encodeDefaults: Boolean) =
-        DocumentReference(await { ios.addDocumentWithData(encode(strategy, data, encodeDefaults) as Map<Any?, *>) })
+        DocumentReference(await { ios.addDocumentWithData(encode(strategy, data, encodeDefaults) as Map<Any?, *>, it) })
 }
 
 actual class FirebaseFirestoreException(message: String, val code: FirestoreExceptionCode) : FirebaseException(message)