Bump org.assertj:assertj-core from 3.27.5 to 3.27.6 in /e2e-tests

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.27.5 to 3.27.6.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.27.5...assertj-build-3.27.6)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  dependency-version: 3.27.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

e2e-tests/build.gradle

@@ -22,7 +22,7 @@ dependencies {
     testImplementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.20.0'
     testImplementation 'commons-io:commons-io:2.20.0'
     testImplementation 'org.awaitility:awaitility:4.3.0'
-    testImplementation "org.assertj:assertj-core:3.27.5"
+    testImplementation "org.assertj:assertj-core:3.27.6"
     testImplementation 'ch.qos.logback:logback-classic:1.5.18'
     testImplementation 'org.xmlunit:xmlunit-assertj3:2.10.4'
     testImplementation 'org.apache.httpcomponents.client5:httpclient5:5.5'