Don't process function range settings in treesit--update-range-1

Don't process function range settings in treesit--update-range-1

This fixes a bug where we call treesit-query-language on a
function, which happens before the QUERY in a range setting can
be either a function or a query, but we call it with
treesit-query-language before knowing whether it's a query or
function.

* lisp/treesit.el:
(treesit--update-range-1): Skip function range settings.
(treesit-update-ranges): Handle function range settings here.

(cherry picked from commit a211a940a1e085d53172ceddf6bfc2391985e861)