patch 8.2.1815: Vim9: memory leak when using function reference

Problem:    Vim9: memory leak when using function reference.
Solution:   Temporarily disable the test.
diff --git a/src/version.c b/src/version.c
index 238113f..ecc4e7d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1815,
+/**/
     1814,
 /**/
     1813,