TEZ-4354: Update netty to 4.1.61.Final (#164) (D M Murali Krishna Reddy reviewed by Laszlo Bodor)

diff --git a/pom.xml b/pom.xml
index 5a2c4fa..3f219ea 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,7 +59,7 @@
     <clover.license>${user.home}/clover.license</clover.license>
     <guava.version>27.0-jre</guava.version>
     <hadoop.version>3.2.2</hadoop.version>
-    <netty.version>4.0.52.Final</netty.version>
+    <netty.version>4.1.61.Final</netty.version>
     <pig.version>0.13.0</pig.version>
     <jersey.version>1.19</jersey.version>
     <slf4j.version>1.7.30</slf4j.version>