patch 8.2.1668: Vim9: not accepting 0 or 1 as bool when type is any

Problem:    Vim9: not accepting 0 or 1 as bool when type is any.
Solution:   Convert the type with the CHECKTYPE instruction. (closes #6913)
diff --git a/src/version.c b/src/version.c
index b225f74..305f0cb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1668,
+/**/
     1667,
 /**/
     1666,