Update CreateNewImageTests.cs

typo

Author: SimaTian

test/Microsoft.NET.Build.Containers.IntegrationTests/CreateNewImageTests.cs

@@ -193,7 +193,7 @@ public void Tasks_EndToEnd_With_EnvironmentVariable_Validation()
         cni.BaseImageTag = pcp.ParsedContainerTag;
         cni.Repository = pcp.NewContainerRepository;
         cni.OutputRegistry = pcp.NewContainerRegistry;
-        cni.PublishDirectory = Path.Combine(newProjectDir.FullName, "bin", "release", EndToEndTests::_oldFramework, "linux-x64");
+        cni.PublishDirectory = Path.Combine(newProjectDir.FullName, "bin", "release", EndToEndTests._oldFramework, "linux-x64");
         cni.WorkingDirectory = "/app";
         cni.Entrypoint = new TaskItem[] { new($"/app/{newProjectDir.Name}") };
         cni.ImageTags = pcp.NewContainerTags;