Update dependency com.hivemq:hivemq-mqtt-client to v1.3.8

Author: renovate[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ commonsLang = "3.18.0"
 dropwizard-metrics-influxdb = "1.3.4"
 gradleOci-junitJupiter = "0.7.0"
 hivemq-extensionSdk = "4.40.0"
-hivemq-mqttClient = "1.3.7"
+hivemq-mqttClient = "1.3.8"
 jetbrains-annotations = "26.0.2"
 junit-jupiter = "5.10.0"
 logback = "1.5.18"