refactor: use lazy's new opts_extend functionality for treesitter and mason

lua/lazyvim/plugins/extras/lang/sql.lua

@@ -67,11 +67,7 @@ return {
   {
     "nvim-treesitter/nvim-treesitter",
     optional = true,
-    opts = function(_, opts)
-      if type(opts.ensure_installed) == "table" then
-        vim.list_extend(opts.ensure_installed, { "sql" })
-      end
-    end,
+    opts = { ensure_installed = { "sql" } },
   },
 
   -- Edgy integration
@@ -99,10 +95,7 @@ return {
   -- Linters & formatters
   {
     "williamboman/mason.nvim",
-    opts = function(_, opts)
-      opts.ensure_installed = opts.ensure_installed or {}
-      vim.list_extend(opts.ensure_installed, { "sqlfluff" })
-    end,
+    opts = { ensure_installed = { "sqlfluff" } },
   },
   {
     "mfussenegger/nvim-lint",