patch 8.2.2456: Coverity warning for strcpy() into fixed size array

Problem:    Coverity warning for strcpy() into fixed size array.
Solution:   Add a type cast to hopefully silence the bogus warning.
diff --git a/src/version.c b/src/version.c
index 19a2f82..804899f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2456,
+/**/
     2455,
 /**/
     2454,