patch 8.2.2683: build failure without the +eval feature

Problem:    Build failure without the +eval feature.
Solution:   Add #ifdef.
diff --git a/src/version.c b/src/version.c
index 54370d3..2161bb9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2683,
+/**/
     2682,
 /**/
     2681,