build(deps): bump org.xmlresolver:xmlresolver from 5.2.3 to 6.0.4

Bumps [org.xmlresolver:xmlresolver](https://github.com/xmlresolver/xmlresolver) from 5.2.3 to 6.0.4.
- [Release notes](https://github.com/xmlresolver/xmlresolver/releases)
- [Commits](xmlresolver/xmlresolver@5.2.3...6.0.4)

---
updated-dependencies:
- dependency-name: org.xmlresolver:xmlresolver
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

exist-parent/pom.xml

@@ -121,7 +121,7 @@
         <nekohtml.version>2.1.3</nekohtml.version>
         <saxon.version>9.9.1-8</saxon.version>
         <xalan.version>2.7.3</xalan.version>
-        <xmlresolver.version>5.2.3</xmlresolver.version>
+        <xmlresolver.version>6.0.4</xmlresolver.version>
         <xmlunit.version>2.9.1</xmlunit.version>
         <junit.version>4.13.2</junit.version>
         <junit.platform.version>1.10.2</junit.platform.version>