feat(treesitter)!: default to correct behavior for quantified captures (#30193)

For context, see https://github.com/neovim/neovim/pull/24738. Before
that PR, Nvim did not correctly handle captures with quantifiers. That
PR made the correct behavior opt-in to minimize breaking changes, with
the intention that the correct behavior would eventually become the
default. Users can still opt-in to the old (incorrect) behavior for now,
but this option will eventually be removed completely.

BREAKING CHANGE: Any plugin which uses `Query:iter_matches()` must
update their call sites to expect an array of nodes in the `match`
table, rather than a single node.

runtime/lua/vim/ui.lua

@@ -196,7 +196,7 @@ function M._get_urls()
     local query = vim.treesitter.query.get(lang, 'highlights')
     if query then
       local tree = assert(ltree:tree_for_range(range))
-      for _, match, metadata in query:iter_matches(tree:root(), bufnr, row, row + 1, { all = true }) do
+      for _, match, metadata in query:iter_matches(tree:root(), bufnr, row, row + 1) do
         for id, nodes in pairs(match) do
           for _, node in ipairs(nodes) do
             if vim.treesitter.node_contains(node, range) then