patch 9.0.1287: with the Kitty key protocl Esc with NumLock cannot be mapped

Problem:    With the Kitty key protocl Esc with NumLock cannot be mapped.
Solution:   Also use K_ESC when there is a modifier. (closes #11811)
diff --git a/src/version.c b/src/version.c
index 439698b..9d5cb0f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1287,
+/**/
     1286,
 /**/
     1285,