fix windows build

tests/SharpCompress.Test/LargeArchiveTests.cs

@@ -40,13 +40,24 @@ public class LargeArchiveTests : TestBase
     [InlineData("Large/Large.7z")]
     public async Task OpenAsyncArchive_ShouldStreamLargeEntry(string fixtureName)
     {
+#if LEGACY_DOTNET
+        using var stream = new AsyncOnlyStream(
+            File.OpenRead(await GetMaterializedFixturePathAsync(fixtureName))
+        );
+#else
         await using var stream = new AsyncOnlyStream(
             File.OpenRead(await GetMaterializedFixturePathAsync(fixtureName))
         );
+#endif
         await using var archive = await ArchiveFactory.OpenAsyncArchive(stream);
 
         var entry = await GetSingleEntryAsync(archive);
+
+#if LEGACY_DOTNET
+        using var entryStream = await entry.OpenEntryStreamAsync();
+#else
         await using var entryStream = await entry.OpenEntryStreamAsync();
+#endif
         await VerifyContentAsync(entry.Key, entryStream);
     }
 
@@ -72,14 +83,25 @@ public class LargeArchiveTests : TestBase
     [InlineData("Large/Large.tar.gz")]
     public async Task OpenAsyncReader_ShouldStreamLargeEntry(string fixtureName)
     {
+#if LEGACY_DOTNET
+        using var stream = new AsyncOnlyStream(
+            File.OpenRead(await GetMaterializedFixturePathAsync(fixtureName))
+        );
+#else
         await using var stream = new AsyncOnlyStream(
             File.OpenRead(await GetMaterializedFixturePathAsync(fixtureName))
         );
+#endif
         await using var reader = await ReaderFactory.OpenAsyncReader(stream);
 
         Assert.True(await reader.MoveToNextEntryAsync());
         Assert.False(reader.Entry.IsDirectory);
+
+#if LEGACY_DOTNET
+        using var entryStream = await reader.OpenEntryStreamAsync();
+#else
         await using var entryStream = await reader.OpenEntryStreamAsync();
+#endif
         await VerifyContentAsync(reader.Entry.Key, entryStream);
         Assert.False(await reader.MoveToNextEntryAsync());
     }