patch 9.1.0612: filetype: deno.lock file not recognized

Problem:  filetype: deno.lock file not recognized
Solution: detect 'deno.lock' as json filetype
          (カワリミ人形)

Reference:
https://docs.deno.com/runtime/manual/basics/modules/integrity_checking/#caching-and-lock-files

closes: #15333

Signed-off-by: カワリミ人形 <kawarimidoll+git@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 3963996..7cef73c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    612,
+/**/
     611,
 /**/
     610,