Add missing @since tag to UploadPack#uploadWithExceptionPropagation

This was missed in b8d9734c

Change-Id: I4b9c1cf058eff16af725375047d743944e7f5db4
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java

@@ -830,6 +830,7 @@ public class UploadPack {
 	 * @throws IOException
 	 *             thrown if the server or the client I/O fails, or there's an
 	 *             internal server error.
+	 * @since 5.6
 	 */
 	public void uploadWithExceptionPropagation(InputStream input,
 			OutputStream output, @Nullable OutputStream messages)