patch 8.0.0940: Test_terminal_scrape_multibyte is flaky

Problem:    Test_terminal_scrape_multibyte is flaky. (James McCoy)
Solution:   Use WaitFor() instead of term_wait().
diff --git a/src/version.c b/src/version.c
index 4978e87..f399dc7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    940,
+/**/
     939,
 /**/
     938,