Update dependency org.apache.ant:ant to v1.10.15 (#85)

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

Author: renovate[bot]

devops-framework-core/pom.xml

@@ -64,7 +64,7 @@
         <dependency>
             <groupId>org.apache.ant</groupId>
             <artifactId>ant</artifactId>
-            <version>1.10.12</version>
+            <version>1.10.15</version>
         </dependency>
         <dependency>
             <groupId>javax.mail</groupId>

devops-framework-plugin/pom.xml

@@ -78,7 +78,7 @@
         <dependency>
             <groupId>org.apache.ant</groupId>
             <artifactId>ant</artifactId>
-            <version>1.10.12</version>
+            <version>1.10.15</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>