patch 8.1.2137: parsing the termresponse is not tested

Problem:    Parsing the termresponse is not tested.
Solution:   Add a first test. (related to #5042)
diff --git a/src/version.c b/src/version.c
index 46bd1b1..a6a1398 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2137,
+/**/
     2136,
 /**/
     2135,