patch 9.0.2063: pacman hooks are detected as conf filetype

Problem:  pacman hooks are detected as conf filetype
Solution: make it consistent to pacman.conf and detect those
          hooks as confini

Because confini has much better syntax highlighting than conf.

For reference, I identified pacman.conf and pacman hooks as dosini in
https://github.com/vim/vim/pull/6335, then
https://github.com/vim/vim/pull/10213 changed them to conf, then
https://github.com/vim/vim/pull/10518 changed pacman.conf to confini but
forgot to change hooks.

closes: #13399

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Guido Cella <guido@guidocella.xyz>

runtime/filetype.vim

@@ -1509,7 +1509,7 @@ au BufNewFile,BufRead *.nmconnection			setf confini
 " Pacman hooks
 au BufNewFile,BufRead *.hook
 	\ if getline(1) == '[Trigger]' |
-	\   setf conf |
+	\   setf confini |
 	\ endif
 
 " Pam conf

src/testdir/test_filetype.vim

@@ -1480,12 +1480,12 @@ func Test_hook_file()
 
   call writefile(['[Trigger]', 'this is pacman config'], 'Xfile.hook', 'D')
   split Xfile.hook
-  call assert_equal('conf', &filetype)
+  call assert_equal('confini', &filetype)
   bwipe!
 
   call writefile(['not pacman'], 'Xfile.hook')
   split Xfile.hook
-  call assert_notequal('conf', &filetype)
+  call assert_notequal('confini', &filetype)
   bwipe!
 
   filetype off

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2063,
 /**/
     2062,
 /**/