fix multiple rust-analyzer by disabling one

lua/plugins/rustaeceanvim.lua

@@ -4,4 +4,14 @@ return {
     version = "^3", -- Recommended
     ft = { "rust" },
   },
+  {
+    "neovim/nvim-lspconfig",
+    opts = {
+      setup = {
+        rust_analyzer = function()
+          return true
+        end,
+      },
+    },
+  },
 }