Update highlight method in init.lua

In nvim 0.10.2, the vim.hl.on_yank() method has been renamed to vim.highlight.on_yank()

This causes the error
Error detected while processing TextYankPost Autocommands for "*":
Error executing lua callback: /home/user/xdg.configFile/nvim/init.lua:218: attempt to index field 'hl' (a nil value) stack traceback: /home/user/xdg.configFile/nvim/init.lua:218: in function </home/user/xdg.configFile/nvim/init.lua:217>

init.lua

@@ -215,7 +215,7 @@ vim.api.nvim_create_autocmd('TextYankPost', {
   desc = 'Highlight when yanking (copying) text',
   group = vim.api.nvim_create_augroup('kickstart-highlight-yank', { clear = true }),
   callback = function()
-    vim.hl.on_yank()
+    vim.highlight.on_yank()
   end,
 })