Bump micronaut-nats to 2.1.0 (micronaut-projects#4050)

Author: micronaut-build

gradle.properties

@@ -65,7 +65,7 @@ micronautJmxVersion=2.0.0
 micronautPicocliVersion=2.2.1
 micronautCassandraVersion=2.2.0
 micronautRabbitMQVersion=2.0.0
-micronautNatsIoVersion=1.0.0
+micronautNatsIoVersion=2.1.0
 micronautNetflixVersion=2.0.0
 micronautGraphQLVersion=2.0.0
 micronautGroovyVersion=2.0.0