Update plugin hivemq-extension to v4

Author: renovate[bot]

gradle/libs.versions.toml

@@ -25,7 +25,7 @@ wiremock = { module = "org.wiremock:wiremock", version.ref = "wiremock" }
 
 [plugins]
 defaults = { id = "io.github.sgtsilvio.gradle.defaults", version = "0.2.0" }
-hivemq-extension = { id = "com.hivemq.extension", version = "3.2.0" }
+hivemq-extension = { id = "com.hivemq.extension", version = "4.0.0" }
 license = { id = "com.github.hierynomus.license", version = "0.16.1" }
 oci = { id = "io.github.sgtsilvio.gradle.oci", version = "0.23.0" }
 protobuf = { id = "com.google.protobuf", version = "0.9.4" }