Add withMinimumTlsVersion to AwsIotMqtt5ClientBuilder

Author: sfodagain

sdk/src/main/java/software/amazon/awssdk/iot/AwsIotMqtt5ClientBuilder.java

@@ -638,6 +638,17 @@ public AwsIotMqtt5ClientBuilder withTopicAliasingOptions(TopicAliasingOptions op
         return this;
     }
 
+    /**
+     * Sets the minimum TLS version that is acceptable for connection establishment.
+     *
+     * @param minimumTlsVersion - Minimum TLS version allowed in client connections.
+     * @return - The AwsIotMqtt5ClientBuilder
+     */
+    public AwsIotMqtt5ClientBuilder withMinimumTlsVersion(TlsContextOptions.TlsVersions minimumTlsVersion) {
+        this.configTls.minTlsVersion = minimumTlsVersion;
+        return this;
+    }
+
     /**
      * Constructs an MQTT5 client object configured with the options set.
      * @return A MQTT5ClientOptions