patch 9.1.0249: filetype: rock_manifest and config.ld files are not recognized

Problem:  filetype: rock_manifest and config.ld files are not recognized
Solution: Detect 'rock_manifest' and 'config.ld' as lua
          (Wu, Zhenyu)

closes: #14370

Signed-off-by: Wu, Zhenyu <wuzhenyu@ustc.edu>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 7eb84b7..5278867 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    249,
+/**/
     248,
 /**/
     247,