patch 8.2.4623: Coverity warns for using uninitialized field

Problem:    Coverity warns for using uninitialized field.
Solution:   Initialize he field to zero.
diff --git a/src/version.c b/src/version.c
index d6edc46..c7164f4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4623,
+/**/
     4622,
 /**/
     4621,