fix: rust dap adapter installation

lua/lazyvim/plugins/extras/lang/rust.lua

@@ -31,14 +31,18 @@ return {
 
   -- Ensure Rust debugger is installed
   {
-    "williamboman/mason.nvim",
+    "mfussenegger/nvim-dap",
     optional = true,
+    dependencies = {
+      {
+        "williamboman/mason.nvim",
         opts = function(_, opts)
-      if type(opts.ensure_installed) == "table" then
+          opts.ensure_installed = opts.ensure_installed or {}
           vim.list_extend(opts.ensure_installed, { "codelldb" })
-      end
         end,
       },
+    },
+  },
 
   {
     "simrat39/rust-tools.nvim",