patch 8.2.4544: Coverity warnings for not using returned value

Problem:    Coverity warnings for not using returned value.
Solution:   Assign to vim_ignored.
diff --git a/src/version.c b/src/version.c
index 4dea68d..98ce90c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4544,
+/**/
     4543,
 /**/
     4542,