Update all patch dependencies to v1.21.3

Author: renovate[bot]

gradle/libs.versions.toml

@@ -12,7 +12,7 @@ junit-jupiter = "5.10.0"
 logback = "1.5.18"
 mockito = "5.18.0"
 okhttp = "4.12.0"
-testcontainers = "1.21.2"
+testcontainers = "1.21.3"
 
 [libraries]
 commonsLang = { module = "org.apache.commons:commons-lang3", version.ref = "commonsLang" }