YARN-5894. fixed license warning caused by de.ruedigermoeller:fst:jar:2.24 (haibochen via rkanter)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/pom.xml

@@ -182,7 +182,17 @@
     <dependency>
       <groupId>de.ruedigermoeller</groupId>
       <artifactId>fst</artifactId>
-      <version>2.24</version>
+      <version>2.50</version>
+      <exclusions>
+        <exclusion>
+          <groupId>org.javassist</groupId>
+          <artifactId>javassist</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.objenesis</groupId>
+          <artifactId>objenesis</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
   </dependencies>