runtime(vim): Update base-syntax, bug fixes

- Contain :profdel arguments.
- Fix string highlighting immediately after lambda -> operators.

Reported by Aliaksei Budavei.

closes: #17427

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/syntax/testdir/input/vim_ex_function.vim

@@ -211,3 +211,19 @@ delfunction foo.bar
 delfunction! Foo
 delfunction foo.bar
 
+
+" Issue https://github.com/vim/vim/pull/17420#issuecomment-2927798687
+" (arg named /fu%\[nction]/)
+
+" FIXME
+silent! delfunc! func
+
+
+" Issue https://github.com/vim/vim/pull/17420#issuecomment-2927798687
+" (function named /s:fu%\[nction]/)
+
+" FIXME
+func! s:func(_, func)
+    return a:func
+endfunc
+