vimPlugins.nvim-treesitter-textobjects: unbreak

Fixes regression from NixOS#472119

https://github.com/nvim-treesitter/nvim-treesitter-textobjects

Author: DarkKirb

pkgs/applications/editors/vim/plugins/overrides.nix

@@ -2769,7 +2769,7 @@ assertNoAdditions {
   };
 
   nvim-treesitter-textobjects = super.nvim-treesitter-textobjects.overrideAttrs {
-    dependencies = [ self.nvim-treesitter-legacy ];
+    dependencies = [ self.nvim-treesitter ];
   };
 
   nvim-treesitter-textsubjects = super.nvim-treesitter-textsubjects.overrideAttrs {