patch 8.2.3212: Vim9: execution speed can be improved

Problem:    Vim9: execution speed can be improved.
Solution:   Use __builtin_expect() to have the compiler produce better code.
            (Dominique Pellé, closes #8613)
diff --git a/src/version.c b/src/version.c
index b604281..2b992db 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3212,
+/**/
     3211,
 /**/
     3210,