fix log warnings for HTTP server instanced source names (opensearch-project#5689)

Signed-off-by: Shenoy Pratik <sgguruda@amazon.com>

Author: ps48

data-prepper-plugins/http-common/src/main/java/org/opensearch/dataprepper/plugins/server/CreateServer.java

@@ -167,8 +167,8 @@ public Server createHTTPServer(final Buffer<Record<Log>> buffer, final Certifica
                     )
             );
         } else {
-            LOG.warn("Creating http source without SSL/TLS. This is not secure.");
-            LOG.warn("In order to set up TLS for the http source, go here: https://github.com/opensearch-project/data-prepper/tree/main/data-prepper-plugins/http-source#ssl");
+            LOG.warn("Creating " + sourceName + " without SSL/TLS. This is not secure.");
+            LOG.warn("In order to set up TLS for the " + sourceName + ", go here: https://github.com/opensearch-project/data-prepper/tree/main/data-prepper-plugins/http-source#ssl");
             sb.http(serverConfiguration.getPort());
         }