ref 19186: DMPoolManager - Use the dataminer user to send emails.

https://support.d4science.org/issues/19186

Added application token

src/test/java/org/gcube/dataanalysis/dataminerpoolmanager/ApplicationTokenTest.java

@@ -22,7 +22,7 @@ public class ApplicationTokenTest {
 
 	public static void main(String[] args) {
 		ScopeProvider.instance.set("/gcube/devsec/devVRE");
-		SecurityTokenProvider.instance.set("a4692fb2-b9bc-40b9-bfda-e8349b14c381-98187548");
+		SecurityTokenProvider.instance.set("xxxx-xxxx-xxx");
 
 		decryptToken();
 	}