update lsp.lua so it works again with sourcekit (swift)

lua/funsi/plugins/lsp.lua

@@ -99,6 +99,9 @@ return { {
             vim.api.nvim_create_autocmd('LspAttach', {
                 desc = 'LSP actions',
                 callback = function(event)
+                    vim.lsp.inlay_hint.enable(true, { bufnr = event.buf })
+                    vim.lsp.inline_completion.enable(true, { bufnr = event.buf })
+
                     -- Autoformat on save
                     local id = vim.tbl_get(event, 'data', 'client_id')
                     local client = id and vim.lsp.get_client_by_id(id)
@@ -196,12 +199,15 @@ return { {
                 cmd = {
                     "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/sourcekit-lsp",
                 },
-                root_dir = function(filename, _)
+                root_dir = function(bufnr, on_dir)
+                    local fname = vim.api.nvim_buf_get_name(bufnr)
                     local util = require("lspconfig.util")
-                    return util.root_pattern("buildServer.json")(filename)
-                        or util.root_pattern("*.xcodeproj", "*.xcworkspace")(filename)
-                        or util.find_git_ancestor(filename)
-                        or util.root_pattern("Package.swift")(filename)
+                    on_dir(
+                        util.root_pattern("buildServer.json")(fname)
+                        or util.root_pattern("*.xcodeproj", "*.xcworkspace")(fname)
+                        or util.root_pattern("Package.swift")(fname)
+                        or vim.fs.root(fname, ".git")
+                    )
                 end,
             })