Update all patch dependencies to v1.20.4 (#73)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

gradle/libs.versions.toml

@@ -10,7 +10,7 @@ mockito = "5.14.2"
 okhttp = "4.12.0"
 owner = "1.0.12"
 prometheus-simpleClient = "0.16.0"
-testcontainers = "1.20.3"
+testcontainers = "1.20.4"
 
 [libraries]
 assertj = { module = "org.assertj:assertj-core", version.ref = "assertj" }