patch 9.0.0273: Konsole termresponse not recognized

Problem:    Konsole termresponse not recognized.
Solution:   Handle Konsole like libvterm, set 'ttymouse' to "sgr".
            (closes #10990)
diff --git a/src/version.c b/src/version.c
index ff452da..291e40a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -724,6 +724,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    273,
+/**/
     272,
 /**/
     271,