HADOOP-16871. Upgrade Netty version to 4.1.45.Final to handle CVE-2019-20444,CVE-2019-16869

(cherry picked from commit c6b8a3038646697b77f6db54a2ef6266a9fc7888)
(cherry picked from commit 74fa55afc3d333d7d99397754f45b3fc54bc0f4a)

 Conflicts:
	hadoop-project/pom.xml

hadoop-project/pom.xml

@@ -787,7 +787,7 @@
       <dependency>
         <groupId>io.netty</groupId>
         <artifactId>netty-all</artifactId>
-        <version>4.1.42.Final</version>
+        <version>4.1.45.Final</version>
       </dependency>
 
       <dependency>