patch 8.2.3067: building fails with Athena

Problem:    Building fails with Athena. (Elimar Riesebieter)
Solution:   Adjust #ifdefs and add the 'drop_file' feature.
diff --git a/src/version.c b/src/version.c
index 9bb7c4f..c43fd3f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3067,
+/**/
     3066,
 /**/
     3065,