Update year NOTICE.txt (#142)

diff --git a/NOTICE.txt b/NOTICE.txt
index 5216ae2..6f4d6d3 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -1,5 +1,5 @@
 Flink Connector for Apache Doris
-Copyright 2018-2022 The Apache Software Foundation
+Copyright 2018-2023 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).