Download action repos into directory

src/Runner.Worker/Handlers/CompositeActionHandler.cs

@@ -68,9 +68,13 @@ namespace GitHub.Runner.Worker.Handlers
             var compositeGitHubContext = new GitHubContext();
             foreach (var pair in githubContext)
             {
-                compositeGitHubContext[pair.Key] = pair.Value.Clone();
+                compositeGitHubContext[pair.Key] = pair.Value;
             }
 
+            // Download all data
+            var actionManager = HostContext.GetService<IActionManager>();
+            await actionManager.PrepareActionsAsync(ExecutionContext, actionSteps);
+
             foreach (Pipelines.ActionStep actionStep in actionSteps)
             {
                 var actionRunner = HostContext.CreateService<IActionRunner>();
@@ -158,6 +162,7 @@ namespace GitHub.Runner.Worker.Handlers
         {
             ArgUtil.NotNull(compositeSteps, nameof(compositeSteps));
 
+
             // The parent StepsRunner of the whole Composite Action Step handles the cancellation stuff already. 
             foreach (IStep step in compositeSteps)
             {