patch 9.0.1414: <M-S-x> in Kitty does not use the Shift modifier

Problem:    <M-S-x> in Kitty does not use the Shift modifier.
Solution:   Apply the Shift modifier to ASCII letters. (closes #11913)
diff --git a/src/version.c b/src/version.c
index 98369f6..277e522 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1414,
+/**/
     1413,
 /**/
     1412,