patch 8.2.0252: Windows compiler warns for using size_t

Problem:    Windows compiler warns for using size_t.
Solution:   Change to int. (Mike Williams)
diff --git a/src/version.c b/src/version.c
index 8d43c79..8ebbf49 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    252,
+/**/
     251,
 /**/
     250,