Update dependency org.junit.jupiter:junit-jupiter to v5.13.4

Author: renovate[bot]

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ commons-compress = "1.27.1"
 commons-io = "2.20.0"
 commons-lang = "3.18.0"
 json = "20250517"
-junit-jupiter = "5.13.3"
+junit-jupiter = "5.13.4"
 netty = "4.2.3.Final"
 oci-registry = "0.6.0"
 reactor-kotlin = "1.2.3"