Bump org.assertj:assertj-core from 3.27.4 to 3.27.6

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) 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
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

build.gradle.kts

@@ -28,7 +28,7 @@ dependencies {
     constraints {
         implementation("com.fasterxml.jackson.core:jackson-databind:2.20.0")
     }
-    testImplementation("org.assertj:assertj-core:3.27.4")
+    testImplementation("org.assertj:assertj-core:3.27.6")
 }
 
 // Set the JVM language level used to build the project. Use Java 11 for 2020.3+, and Java 17 for 2022.2+.