V2.2.0 Migrate to Sonatype Central and upgrade dependencies

1. JNats client dependency updated

implementation 'io.nats:jnats:2.21.1'

2. These dependencies used versions that had recently reported vulnerabilities so were upgraded

implementation("com.fasterxml.jackson.core:jackson-core:2.19.0")
implementation("io.netty:netty-handler:4.2.1.Final")
implementation(platform("io.vertx:vertx-stack-depchain:4.5.14"))

3. Build migrated to Sonatype Central