fix: inject handler which was removed during merge

src/Altinn.Correspondence.Application/DependencyInjection.cs

@@ -59,6 +59,7 @@ public static void AddApplicationHandlers(this IServiceCollection services)
         // Legacy
         services.AddScoped<LegacyGetCorrespondencesHandler>();
         services.AddScoped<LegacyGetCorrespondenceOverviewHandler>();
+        services.AddScoped<LegacyGetCorrespondenceHistoryHandler>();
 
         // Migration
         services.AddScoped<MigrateInitializeAttachmentHandler>();