Update NOTICE (#17)

diff --git a/NOTICE b/NOTICE
index 048a3ad..cf67c8d 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
 Apache SkyWalking
-Copyright 2017-2021 The Apache Software Foundation
+Copyright 2017-2022 The Apache Software Foundation
 
 This product includes software developed at
-The Apache Software Foundation (http://www.apache.org/).
\ No newline at end of file
+The Apache Software Foundation (http://www.apache.org/).