patch 8.2.0603: configure does not detect moonjit

Problem:    Configure does not detect moonjit.
Solution:   Add check for moonjit. (Shlomi Fish, closes #5947)
diff --git a/src/version.c b/src/version.c
index 66f5365..c2e4928 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    603,
+/**/
     602,
 /**/
     601,