patch 9.0.0348: MS-Windows: GUI mouse move event test is flaky

Problem:    MS-Windows: GUI mouse move event test is flaky.
Solution:   Wait for a little while for the first move event.
diff --git a/src/version.c b/src/version.c
index 147f876..18278c3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -708,6 +708,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    348,
+/**/
     347,
 /**/
     346,