patch 8.2.2669: command line completion does not work after "vim9"

Problem:    Command line completion does not work after "vim9".
Solution:   Include the "9". (Naohiro Ono, closes #8025)
diff --git a/src/version.c b/src/version.c
index 716f41e..00d2fd7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2669,
+/**/
     2668,
 /**/
     2667,