Update the version to 2.1.1

Author: stcarrez

.alire/ado.gpr

@@ -3,7 +3,7 @@ with "utilada_sys";
 with "utilada_xml";
 
 library project Ado is
-   Version := "2.1.0";
+   Version := "2.1.1";
    Library_Dir := "lib";
 
    Library_Type : Ado_Config.Library_Type_Type := external ("ADO_LIBRARY_TYPE", "static");