patch 8.2.5145: exit test causes spurious valgrind reports

Problem:    Exit test causes spurious valgrind reports.
Solution:   Skip test.  Add CheckNotValgrind.
diff --git a/src/version.c b/src/version.c
index 9b2fd4e..0353e90 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5145,
+/**/
     5144,
 /**/
     5143,