HostModel:Enable TestWithAdditionalContentAfterBundleMetadata (dotnet/core-setup#6968)

The above test was disabled in PR dotnet/core-setup#6885 because the lab runs
showed failures because of "not enough disk space"

This PR now enables the test, since the test job no longer uses the hosted pool.

Commit migrated from https://github.com/dotnet/core-setup/commit/b44e5a25b376cfa6e0581cd69af05ce655d72f40

src/installer/test/BundleTests/Microsoft.NET.HostModel.Bundle.Tests/BundlerConsistencyTests.cs

@@ -143,7 +143,7 @@ public void AllBundledFilesAreExtracted()
             bundleDir.Should().OnlyHaveFiles(expectedFiles);
         }
 
-        [Fact(Skip = "Disabled in master temporarily to avoid infra issues")]
+        [Fact]
         public void TestWithAdditionalContentAfterBundleMetadata()
         {
             var fixture = sharedTestState.TestFixture.Copy();