Update testcontainers-java monorepo to v1.20.5

Author: renovate[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ picocli = "4.7.6"
 jackson = "2.18.2"
 slf4j = "2.0.16"
 logback = "1.5.16"
-testcontainers = "1.20.4"
+testcontainers = "1.20.5"
 
 [libraries]
 slf4j-api = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }