Ensure nodeinfo-provided protocols are strings in Model\GServer::parseNodeinfo2
Ensure nodeinfo-provided protocols are strings in Model\GServer::parseNodeinfo2

- https://github.com/friendica/friendica/issues/10168#issuecomment-828281803

tobiasd/friendica,tobiasd/friendica,annando/friendica,friendica/friendica,tobiasd/friendica,tobiasd/friendica,annando/friendica,friendica/friendica,friendica/friendica,friendica/friendica,annando/friendica,annando/friendica,annando/friendica,tobiasd/friendica,friendica/friendica