patch 8.2.1271: Vim9: Error for Funcref function argument type

Problem:    Vim9: Error for Funcref function argument type.
Solution:   Find the actual function type if possible. (issue #6507)
diff --git a/src/version.c b/src/version.c
index 9ac0340..0bb6b0a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1271,
+/**/
     1270,
 /**/
     1269,