Bump org.assertj:assertj-core in the gradle group across 1 directory

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


Updates `org.assertj:assertj-core` from 3.25.2 to 3.27.7
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.25.2...assertj-build-3.27.7)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  dependency-version: 3.27.7
  dependency-type: direct:production
  dependency-group: gradle
...

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

Author: dependabot[bot]

automessage-core/build.gradle.kts

@@ -15,7 +15,7 @@ dependencies {
     implementation("dev.rollczi:litecommands-annotations:3.10.6")
 
     testImplementation("org.junit.jupiter:junit-jupiter:6.0.1")
-    testImplementation("org.assertj:assertj-core:3.25.2")
+    testImplementation("org.assertj:assertj-core:3.27.7")
     testImplementation("org.mockito:mockito-core:5.8.0")
     testImplementation("org.mockito:mockito-junit-jupiter:5.8.0")
     testImplementation("org.mockito:mockito-inline:5.2.0")