patch 9.0.1268: .clangd and .stylelintrc files don't get a filetype

Problem:    .clangd and .stylelintrc files don't get a filetype.
Solution:   Use yaml for .clangd and json for .stylelintrc files. (Mark
            Skelton, closes #11916)
diff --git a/src/version.c b/src/version.c
index e06b6be..45dd798 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1268,
+/**/
     1267,
 /**/
     1266,