Bump xalan:xalan from 2.7.2 to 2.7.3 in /src/etc/poms/ant-junit

Bumps xalan:xalan from 2.7.2 to 2.7.3.

---
updated-dependencies:
- dependency-name: xalan:xalan
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/src/etc/poms/ant-junit/pom.xml b/src/etc/poms/ant-junit/pom.xml
index baf7ccf..a5beab5 100644
--- a/src/etc/poms/ant-junit/pom.xml
+++ b/src/etc/poms/ant-junit/pom.xml
@@ -57,7 +57,7 @@
     <dependency>
       <groupId>xalan</groupId>
       <artifactId>xalan</artifactId>
-      <version>2.7.2</version>
+      <version>2.7.3</version>
       <scope>test</scope>
     </dependency>
   </dependencies>