[Onion services] Update DW onion site URL

Last week DW launched their v3 onion service. Proof: https://www.dw.com/de/schutz-vor-hackern-darum-wird-tor-noch-sicherer/a-57953191

Address: https://dwnewsgngmhlplxy6o2twtfgjnrnjxbegbwqx6wnotdhkzt562tszfid.onion/

https://community.torproject.org/onion-services/#featured-onions