Bump xmlunit.version from 2.10.2 to 2.10.3

Bumps `xmlunit.version` from 2.10.2 to 2.10.3.

Updates `org.xmlunit:xmlunit-core` from 2.10.2 to 2.10.3
- [Release notes](https://github.com/xmlunit/xmlunit/releases)
- [Changelog](https://github.com/xmlunit/xmlunit/blob/main/RELEASE_NOTES.md)
- [Commits](xmlunit/xmlunit@v2.10.2...v2.10.3)

Updates `org.xmlunit:xmlunit-matchers` from 2.10.2 to 2.10.3
- [Release notes](https://github.com/xmlunit/xmlunit/releases)
- [Changelog](https://github.com/xmlunit/xmlunit/blob/main/RELEASE_NOTES.md)
- [Commits](xmlunit/xmlunit@v2.10.2...v2.10.3)

Updates `org.xmlunit:xmlunit-legacy` from 2.10.2 to 2.10.3
- [Release notes](https://github.com/xmlunit/xmlunit/releases)
- [Changelog](https://github.com/xmlunit/xmlunit/blob/main/RELEASE_NOTES.md)
- [Commits](xmlunit/xmlunit@v2.10.2...v2.10.3)

---
updated-dependencies:
- dependency-name: org.xmlunit:xmlunit-core
  dependency-version: 2.10.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.xmlunit:xmlunit-matchers
  dependency-version: 2.10.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.xmlunit:xmlunit-legacy
  dependency-version: 2.10.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

exist-parent/pom.xml

@@ -122,7 +122,7 @@
         <nekohtml.version>2.1.3</nekohtml.version>
         <saxon.version>9.9.1-8</saxon.version>
         <xmlresolver.version>6.0.17</xmlresolver.version>
-        <xmlunit.version>2.10.2</xmlunit.version>
+        <xmlunit.version>2.10.3</xmlunit.version>
         <junit.version>4.13.2</junit.version>
         <junit.platform.version>1.13.1</junit.platform.version>
         <junit.jupiter.version>5.13.1</junit.jupiter.version>