Update dependency com.hivemq:hivemq-mqtt-client to v1.3.7 (#45)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-hivemq-mqttClient = "1.3.6"
+hivemq-mqttClient = "1.3.7"
 jetbrains-annotations = "26.0.2"
 junit-jupiter = "5.10.2"
 logback = "1.5.18"