patch 8.2.1610: Vim9: cannot pass "true" to list2str() and str2list()

Problem:    Vim9: cannot pass "true" to list2str() and str2list().
Solution:   Use tv_get_bool_chk(). (closes #6877)

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1610,
 /**/
     1609,
 /**/