uncomment the test 20

Author: nilchia

tools/flexynesis/flexynesis.xml

@@ -1455,9 +1455,8 @@
                 </element>
             </output_collection>
         </test>
-        <!-- this test will be enabled when the issue is fixed here: https://github.com/BIMSBbioinfo/flexynesis/pull/127 -->
         <!-- test 20: Supervised training with GEX and CNV data, GNN model, Erlotinib target + user graph-->
-        <!-- <test expect_num_outputs="1">
+        <test expect_num_outputs="1">
             <param name="non_commercial_use" value="True"/>
             <conditional name="training_type">
                 <param name="model" value="s_train"/>
@@ -1534,7 +1533,7 @@
                     </assert_contents>
                 </element>
             </output_collection>
-        </test> -->
+        </test>
         <!-- test 21: Supervised training with GEX and CNV data, SVM model, Erlotinib target -->
         <test expect_num_outputs="1">
             <param name="non_commercial_use" value="True"/>