HADOOP-17886. Upgrade ant to 1.10.11 (#3371)

(cherry picked from commit 051207375b30ffa126cf9c961ee97535c1dfabb1)

hadoop-project/pom.xml

@@ -148,6 +148,7 @@
     so that Hadoop 3.x can declare itself a 2.x artifact. -->
     <declared.hadoop.version>${project.version}</declared.hadoop.version>
     <woodstox.version>5.3.0</woodstox.version>
+    <apache-ant.version>1.10.11</apache-ant.version>
   </properties>
 
   <dependencyManagement>
@@ -971,7 +972,7 @@
       <dependency>
         <groupId>org.apache.ant</groupId>
         <artifactId>ant</artifactId>
-        <version>1.10.9</version>
+        <version>${apache-ant.version}</version>
       </dependency>
       <dependency>
         <groupId>com.google.re2j</groupId>