patch 9.1.0253: filetype: typespec files are not recognized

Problem:  filetype: typespec files are not recognized
Solution: Detect '*.tsp' files as typespec
          (Hilmar Wiegand)

Specs is at https://typespec.io/

closes: #14392

Signed-off-by: Hilmar Wiegand <me@hwgnd.de>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index e927c0b..4c7ab84 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    253,
+/**/
     252,
 /**/
     251,