Bump org.xmlunit:xmlunit-assertj3 from 2.10.3 to 2.10.4 in /e2e-tests

Bumps [org.xmlunit:xmlunit-assertj3](https://github.com/xmlunit/xmlunit) from 2.10.3 to 2.10.4.
- [Release notes](https://github.com/xmlunit/xmlunit/releases)
- [Changelog](https://github.com/xmlunit/xmlunit/blob/main/RELEASE_NOTES.md)
- [Commits](xmlunit/xmlunit@v2.10.3...v2.10.4)

---
updated-dependencies:
- dependency-name: org.xmlunit:xmlunit-assertj3
  dependency-version: 2.10.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

e2e-tests/build.gradle

@@ -24,7 +24,7 @@ dependencies {
     testImplementation 'org.awaitility:awaitility:4.3.0'
     testImplementation "org.assertj:assertj-core:3.27.4"
     testImplementation 'ch.qos.logback:logback-classic:1.5.18'
-    testImplementation 'org.xmlunit:xmlunit-assertj3:2.10.3'
+    testImplementation 'org.xmlunit:xmlunit-assertj3:2.10.4'
     testImplementation 'org.apache.httpcomponents.client5:httpclient5:5.5'
 
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'