ref 19081: DM Pool Manager uses a deprecated social networking api

https://support.d4science.org/issues/19081

Updated to new Social Networking API

src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/SendMail.java

@@ -185,7 +185,7 @@ public class SendMail {
 	private void checkResponse(String response) throws EMailException {
 		if (response == null) {
 			logger.error("Invalid notification response: " + response);
-			throw new EMailException();***REMOVED*** TODO
+			throw new EMailException();
 	***REMOVED*** else {
 			try {
 				JSONObject res = new JSONObject(response);