Bump ivy from 2.4.0 to 2.5.1 in /upgrader

Bumps ivy from 2.4.0 to 2.5.1.

---
updated-dependencies:
- dependency-name: org.apache.ivy:ivy
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

upgrader/pom.xml

@@ -153,7 +153,7 @@
                <dependency>
                   <groupId>org.apache.ivy</groupId>
                   <artifactId>ivy</artifactId>
-                  <version>2.4.0</version>
+                  <version>2.5.1</version>
                </dependency>
                <dependency>
                   <groupId>ant-contrib</groupId>