patch 8.2.4068: Vim9: import test fails

Problem:    Vim9: import test fails.
Solution:   Add missing change.
diff --git a/src/version.c b/src/version.c
index adf2175..74b03e4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4068,
+/**/
     4067,
 /**/
     4066,