Update dependency org.mockito:mockito-junit-jupiter to v5.20.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -7,7 +7,7 @@ commons-lang3 = "org.apache.commons:commons-lang3:3.18.0"
 junit-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "junit" }
 junit-engine = { module = "org.junit.jupiter:junit-jupiter-engine", version.ref = "junit" }
 log4j = "org.apache.logging.log4j:log4j-core:2.25.2"
-mockito = "org.mockito:mockito-junit-jupiter:5.18.0"
+mockito = "org.mockito:mockito-junit-jupiter:5.20.0"
 
 [plugins]
 shadow = "com.github.johnrengelman.shadow:8.1.1"