patch 8.2.4966: MS-Windows GUI: mouse event test gets extra event

Problem:    MS-Windows GUI: mouse event test gets extra event.
Solution:   Ignore one move event.
diff --git a/src/version.c b/src/version.c
index f36e552..dcb8d72 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4966,
+/**/
     4965,
 /**/
     4964,