patch 8.2.1475: Vim9: can't use v:true for option flags

Problem:    Vim9: can't use v:true for option flags.
Solution:   Add tv_get_bool_chk(). (closes #6725)
diff --git a/src/version.c b/src/version.c
index afd3aaa..83af396 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1475,
+/**/
     1474,
 /**/
     1473,