patch 9.0.2087: build-failure in vim9class

Problem:  build-failure in vim9class
Solution: reference correct error message,
          disable non-failing test

closes: #13476
closes: #13477

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2087,
 /**/
     2086,
 /**/