Bump xalan from 2.7.2 to 2.7.3 (#81)

* Bump xalan from 2.7.2 to 2.7.3

Bumps xalan from 2.7.2 to 2.7.3.

---
updated-dependencies:
- dependency-name: xalan:xalan
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

* Add xalan:serializer

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Slawomir Jaranowski <s.jaranowski@gmail.com>

pom.xml

@@ -187,7 +187,13 @@
     <dependency>
       <groupId>xalan</groupId>
       <artifactId>xalan</artifactId>
-      <version>2.7.2</version>
+      <version>2.7.3</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>xalan</groupId>
+      <artifactId>serializer</artifactId>
+      <version>2.7.3</version>
       <scope>test</scope>
     </dependency>
     <dependency>