patch 8.2.1003: Vim9: return type of sort() is too generic

Problem:    Vim9: return type of sort() is too generic.
Solution:   Get type from the first argument. (closes #6292)
diff --git a/src/version.c b/src/version.c
index 34bb99b..2cdb140 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1003,
+/**/
     1002,
 /**/
     1001,