fix(deps): update testcontainers-java monorepo to v1.19.8

Author: renovate[bot]

gradle/libs.versions.toml

@@ -9,7 +9,7 @@ scylladb_java_driver = "4.17.0.0"
 
 junit = "5.10.2"
 assertj = "3.25.3"
-testcontainers = "1.19.7"
+testcontainers = "1.19.8"
 guava = "33.2.0-jre"
 
 logback = "1.5.6"