patch 9.0.2060: *.{gn,gni} files are not recognized

Problem:  *.{gn,gni} files are not recognized
Solution: Detect some as gn filetype (without adding an extra filetype)

Those come from: https://gn.googlesource.com/gn/

closes: #13405

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Amaan Qureshi <amaanq12@gmail.com>
diff --git a/src/version.c b/src/version.c
index 8f0a9c3..37a31fd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2060,
+/**/
     2059,
 /**/
     2058,