Update zstd to 1.3.8 as 1.3.x

Summary: Update zstd in TP2 to zstd-1.3.8.

Reviewed By: pixelb

Differential Revision: D13575719

fbshipit-source-id: eb7961078ad161eb633b08b7e80e87f1c63ccca5

async-compression/src/decompressor.rs

@@ -50,7 +50,7 @@ where
                 DecompressorType::Bzip2 => Box::new(BzDecoder::new(r)),
                 DecompressorType::Gzip => Box::new(GzDecoder::new(r)),
                 DecompressorType::OverreadingZstd => Box::new(
-                    ZstdDecoder::new(r).expect("ZstdDecoder failed to create. Are we OOM?"),
+                    ZstdDecoder::with_buffer(r).expect("ZstdDecoder failed to create. Are we OOM?"),
                 ),
             },
         }