Remove unneded comma

lua/custom/plugins/rust.lua

@@ -1,9 +1,9 @@
 return {
-    -- Managing crates.io dependencies --
+  -- Managing crates.io dependencies --
-    'saecki/crates.nvim',
+  'saecki/crates.nvim',
-    tag = 'stable',
+  tag = 'stable',
-    event = { "BufRead Cargo.toml" },
+  event = { 'BufRead Cargo.toml' },
-    config = function()
+  config = function()
-      require('crates').setup()
+    require('crates').setup()
-    end,
+  end,
-  },
+}