style: apply spotless to webhook changes

Author: nijeesh-stream

src/main/java/io/getstream/chat/java/models/App.java

@@ -15,12 +15,12 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.util.StdDateFormat;
+import io.getstream.chat.java.exceptions.InvalidWebhookError;
 import io.getstream.chat.java.models.App.AppCheckPushRequestData.AppCheckPushRequest;
 import io.getstream.chat.java.models.App.AppCheckSnsRequestData.AppCheckSnsRequest;
 import io.getstream.chat.java.models.App.AppCheckSqsRequestData.AppCheckSqsRequest;
 import io.getstream.chat.java.models.App.AppUpdateRequestData.AppUpdateRequest;
 import io.getstream.chat.java.models.App.PushProviderRequestData.PushProviderRequest;
-import io.getstream.chat.java.exceptions.InvalidWebhookError;
 import io.getstream.chat.java.models.ChannelType.ChannelTypeWithStringCommands;
 import io.getstream.chat.java.models.User.UserRequestObject;
 import io.getstream.chat.java.models.framework.RequestObjectBuilder;