patch 9.0.2088: Vim9: still allows abstract static methods

Problem:  Vim9: still allows abstract static methods
          (after v9.0.2084, v9.0.2085 and v9.0.2087)
Solution: Disallow abstract static methods

closes: #13479

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index a475361..e45df16 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2088,
+/**/
     2087,
 /**/
     2086,