modules/performance: temporary add plenary to extraPlugins to fix tests

modules/performance.nix

@@ -1,6 +1,12 @@
-{ lib, ... }:
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
 let
   inherit (lib) types;
+  cfg = config.performance;
 in
 {
   options.performance = {
@@ -54,6 +60,17 @@ in
     };
   };
 
+  # FIXME: The performance options do not correctly propagate lua module dependencies.
+  # We can explicitly specify 'plenary-nvim', as it is a very common dependency.
+  # While this is enough for our test suite to pass, end-users may be affected by other dependencies not covered by our test suite.
+  #
+  # See https://github.com/nix-community/nixvim/pull/3099
+  config.extraPlugins =
+    lib.mkIf (cfg.combinePlugins.enable || (cfg.byteCompileLua.enable && cfg.byteCompileLua.plugins))
+      [
+        pkgs.vimPlugins.plenary-nvim
+      ];
+
   config.performance = {
     # Set option value with default priority so that values are appended by default
     combinePlugins.pathsToLink = [