patch 8.2.2261: Vim9: boolean option gets string type

Problem:    Vim9: boolean option gets string type.
Solution:   Check for VAR_BOOL. (closes #7588)
diff --git a/src/version.c b/src/version.c
index a1b32e8..b016c28 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2261,
+/**/
     2260,
 /**/
     2259,