Bump xalan:xalan from 2.7.2 to 2.7.3

Bumps xalan:xalan from 2.7.2 to 2.7.3.

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

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

pom.xml

@@ -87,7 +87,7 @@
         <dependency>
             <groupId>xalan</groupId>
             <artifactId>xalan</artifactId>
-            <version>2.7.2</version>
+            <version>2.7.3</version>
         </dependency>
         <dependency>
             <groupId>xml-security</groupId>