patch 8.2.1443: Vim9: crash when interrupting a nested :def function

Problem:    Vim9: crash when interrupting a nested :def function.
Solution:   Push a dummy return value onto the stack. (closes #6701)
diff --git a/src/version.c b/src/version.c
index 95337c7..e2e6b2d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1443,
+/**/
     1442,
 /**/
     1441,