Bump org.assertj:assertj-core from 3.26.3 to 3.27.0

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.26.3 to 3.27.0.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.26.3...assertj-build-3.27.0)

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

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

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ logback = "1.5.12"
 junit-platform = "1.11.3"
 junit-jupiter = "5.11.3"
 mockito = "5.14.2"
-assertj = "3.26.3"
+assertj = "3.27.0"
 
 [libraries]
 gdx-lwjgl3 = { group = "com.badlogicgames.gdx", name = "gdx-backend-lwjgl3", version.ref = "libgdx" }