Bump org.assertj:assertj-core from 3.27.4 to 3.27.6 in the test group

Bumps the test group with 1 update: [org.assertj:assertj-core](https://github.com/assertj/assertj).


Updates `org.assertj:assertj-core` from 3.27.4 to 3.27.6
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.27.4...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
  dependency-group: test
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -19,7 +19,7 @@ jsonbApi = "3.0.1"
 jsonbRuntime = "3.0.4"
 
 # testLibs
-assertj = "3.27.4"
+assertj = "3.27.6"
 h2 = "2.3.232"
 junit5 = "5.13.4"
 junitPlatform5= "1.13.4"