patch 8.1.0481: when "Terminal" highlight is reverted cursor doesn't show

Problem:    When "Terminal" highlight is reverted cursor doesn't show.
Solution:   Get the colors of the "Terminal" group. (closes #3546)
diff --git a/src/version.c b/src/version.c
index 1eab778..dada7a7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -793,6 +793,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    481,
+/**/
     480,
 /**/
     479,