Bump the test-dependencies group across 1 directory with 4 updates (#71)

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 jackson = "2.20.0"
-junit = "5.13.3"
-mockito = "5.18.0"
+junit = "5.14.0"
+mockito = "5.20.0"
 
 [libraries]
 kafka-bom = { group = "com.bakdata.kafka", name = "kafka-bom", version = "1.2.1" }
@@ -18,7 +18,7 @@ jackson-datatype-jsr310 = { group = "com.fasterxml.jackson.datatype", name = "ja
 
 junit-platform-launcher = { group = "org.junit.platform", name = "junit-platform-launcher" }
 junit-jupiter = { group = "org.junit.jupiter", name = "junit-jupiter", version.ref = "junit" }
-assertj = { group = "org.assertj", name = "assertj-core", version = "3.27.3" }
+assertj = { group = "org.assertj", name = "assertj-core", version = "3.27.6" }
 mockito-core = { group = "org.mockito", name = "mockito-core", version.ref = "mockito" }
 mockito-junit = { group = "org.mockito", name = "mockito-junit-jupiter", version.ref = "mockito" }
 fluentKafkaStreamsTests = { group = "com.bakdata.fluent-kafka-streams-tests", name = "fluent-kafka-streams-tests-junit5", version = "3.4.1" }