patch 9.1.0188: filetype: no support for Vento files

Problem:  Vento files are not recognized.
Solution: Recognize *.vto files as filetype "vento" (wrapperup)

Vento is a templating engine https://vento.js.org/

closes: #14229

Signed-off-by: wrapperup <wrapperup4@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index ca4ca56..db093a7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    188,
+/**/
     187,
 /**/
     186,