Potential fix for pull request finding

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Author: stefanpenner

src/Runner.Worker/ActionManager.cs

@@ -82,7 +82,7 @@ public sealed class ActionManager : RunnerService, IActionManager
             var containerSetupSteps = new List<JobExtensionRunner>();
             // Stack-local cache: same action (owner/repo@ref) is resolved only once,
             // even if it appears at multiple depths in a composite tree.
-            var resolvedDownloadInfos = new Dictionary<string, WebApi.ActionDownloadInfo>(StringComparer.Ordinal);
+            var resolvedDownloadInfos = new Dictionary<string, WebApi.ActionDownloadInfo>(StringComparer.OrdinalIgnoreCase);
             var depth = 0;
             // We are running at the start of a job
             if (rootStepId == default(Guid))