Update basic auth examples

examples/nats-client-basic-auth/nats_client_basic_auth.metatags

@@ -1,2 +1,2 @@
-description: This example demonstrates producing a message to a NATS subject using a secured connection.
+description: This example demonstrates producing a message to a NATS subject using a connection with basic authentication.
 keywords: ballerina, ballerina by example, bbe, nats, basic, ssl, tls, authentication

examples/nats-service-basic-auth/nats_service_basic_auth.metatags

@@ -1,2 +1,2 @@
-description: This example demonstrates consuming messages from a NATS subject using a secured connection.
+description: This example demonstrates consuming messages from a NATS subject using a connection with basic authentication.
 keywords: ballerina, ballerina by example, bbe, nats, basic, ssl, tls, authentication

examples/rabbitmq-client-basic-auth/rabbitmq_client_basic_auth.metatags

@@ -1,2 +1,2 @@
-description: This example demonstrates publishing messages to a RabbitMQ queue using a secured connection with basic authentication.
+description: This example demonstrates publishing messages to a RabbitMQ queue using a connection with basic authentication.
 keywords: ballerina, ballerina by example, rabbitmq, ssl, tls, authentication, credentials

examples/rabbitmq-service-basic-auth/rabbitmq_service_basic_auth.metatags

@@ -1,2 +1,2 @@
-description: This example demonstrates consuming messages from a RabbitMQ queue using a secured connection with basic authentication.
+description: This example demonstrates consuming messages from a RabbitMQ queue using a connection with basic authentication.
 keywords: ballerina, ballerina by example, rabbitmq, ssl, tls, authentication, credentials