Update dependency org.testcontainers:toxiproxy to v1.20.5

Author: renovate[bot]

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ junit-jupiter = "5.10.0"
 logback = "1.5.16"
 mockito = "5.15.2"
 owner = "1.0.12"
-testcontainers = "1.20.4"
+testcontainers = "1.20.5"
 
 [libraries]
 awaitility = { module = "org.awaitility:awaitility", version.ref = "awaitility" }