patch 9.0.1337: yuck files are not recognized

Problem:    Yuck files are not recognized.
Solution:   Add a filetype pattern for yuck files. (Amaan Qureshi,
            closes #12033)

runtime/filetype.vim

@@ -2441,6 +2441,9 @@ au BufNewFile,BufRead */etc/yum.conf		setf dosini
 " YANG
 au BufRead,BufNewFile *.yang			setf yang
 
+" Yuck
+au BufNewFile,BufRead *.yuck			setf yuck
+
 " Zimbu
 au BufNewFile,BufRead *.zu			setf zimbu
 " Zimbu Templates

src/testdir/test_filetype.vim

@@ -664,6 +664,7 @@ let s:filename_checks = {
     \ 'yacc': ['file.yy', 'file.yxx', 'file.y++'],
     \ 'yaml': ['file.yaml', 'file.yml', '.clangd', '.clang-format', '.clang-tidy'],
     \ 'yang': ['file.yang'],
+    \ 'yuck': ['file.yuck'],
     \ 'z8a': ['file.z8a'],
     \ 'zig': ['file.zig'],
     \ 'zimbu': ['file.zu'],

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1337,
 /**/
     1336,
 /**/