Bump version.xmlunit from 2.8.2 to 2.8.3

Bumps `version.xmlunit` from 2.8.2 to 2.8.3.

Updates `xmlunit-core` from 2.8.2 to 2.8.3
- [Release notes](https://github.com/xmlunit/xmlunit/releases)
- [Changelog](https://github.com/xmlunit/xmlunit/blob/main/RELEASE_NOTES.md)
- [Commits](xmlunit/xmlunit@v2.8.2...v2.8.3)

Updates `xmlunit-matchers` from 2.8.2 to 2.8.3
- [Release notes](https://github.com/xmlunit/xmlunit/releases)
- [Changelog](https://github.com/xmlunit/xmlunit/blob/main/RELEASE_NOTES.md)
- [Commits](xmlunit/xmlunit@v2.8.2...v2.8.3)

---
updated-dependencies:
- dependency-name: org.xmlunit:xmlunit-core
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.xmlunit:xmlunit-matchers
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -61,7 +61,7 @@
     <version.jackson>2.13.0</version.jackson>
 
     <version.junit-jupiter>5.8.1</version.junit-jupiter>
-    <version.xmlunit>2.8.2</version.xmlunit>
+    <version.xmlunit>2.8.3</version.xmlunit>
     <version.jsonassert>1.5.0</version.jsonassert>
   </properties>