Update dependency org.jenkins-ci.plugins:ant to v520 (#11205)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

test/pom.xml

@@ -104,7 +104,7 @@ THE SOFTWARE.
       <dependency>
         <groupId>org.jenkins-ci.plugins</groupId>
         <artifactId>ant</artifactId>
-        <version>518.v8d8dc7945eca_</version>
+        <version>520.vd082ecfb_16a_9</version>
       </dependency>
       <dependency>
         <groupId>org.jenkins-ci.plugins</groupId>