patch 8.1.0725: conceal mode is not completely tested

Problem:    Conceal mode is not completely tested.
Solution:   Add tests for moving the cursor in Insert mode.
diff --git a/src/version.c b/src/version.c
index 50b3263..743712d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -796,6 +796,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    725,
+/**/
     724,
 /**/
     723,