fix: use of GziupInputStreamBuilder

Author: bogovicj

src/main/java/org/janelia/saalfeldlab/n5/GzipCompression.java

@@ -95,7 +95,7 @@ private InputStream decode(final InputStream in) throws IOException {
 			return GzipCompressorInputStream.builder()
 					.setInputStream(in)
 					.setDecompressConcatenated(true)
-					.getInputStream();
+					.get();
 		}
 	}