patch 8.2.1021: Ruby interface not tested enough

Problem:    Ruby interface not tested enough.
Solution:   Add a couple more tests. (Dominique Pellé, closes #6301)
diff --git a/src/version.c b/src/version.c
index b9e6d5b..94027af 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1021,
+/**/
     1020,
 /**/
     1019,