fixes in calling of "asUpdate"

src/commonMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/update/abstracts/Update.kt

@@ -36,7 +36,7 @@ internal object UpdateDeserializationStrategy : DeserializationStrategy<Update>
             RawUpdate.serializer(),
             asJson
         ).asUpdate(
-            asJson.toString()
+            asJson
         )
     }
 }

src/jvmMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/utils/extensions/Webhooks.kt

@@ -73,12 +73,12 @@ suspend fun RequestsExecutor.setWebhook(
         module {
             routing {
                 post(listenRoute) {
-                    val deserialized = call.receiveText()
+                    val asJson = Json.nonstrict.parseJson(call.receiveText())
-                    val update = Json.nonstrict.parse(
+                    val update = Json.nonstrict.fromJson(
                         RawUpdate.serializer(),
-                        deserialized
+                        asJson
                     )
-                    updatesChannel.send(update.asUpdate(deserialized))
+                    updatesChannel.send(update.asUpdate(asJson))
                     call.respond("Ok")
                 }
             }