test: override attrs

Author: thamenato

modules/wrapper/build/config.nix

@@ -35,7 +35,7 @@
     );
 
   # Build a given Treesitter grammar.
-  buildTreesitterPlug = grammars: vimPlugins.nvim-treesitter.withPlugins (_: grammars);
+  buildTreesitterPlug = grammars: vimPlugins.nvim-treesitter.withPlugin (_: grammars);
 
   pluginBuilders = {
     nvim-treesitter = buildTreesitterPlug config.vim.treesitter.grammars;