Log Message:
Update ruby-dnsruby to 1.58.0.

## v1.58.0

* Add TCP pipelining (reusing a single TCP connection for multiple requests).
* Enhance zone reading, including reading data from a string.
* Add add_answer! method for adding duplicate answers, as needed for an AXFR \ 
response.
* Add support for GPOS and NXT resource records.
* Test cleanup, including removal of use of Nominet servers, soak_test cleanup.
* Refactorings: MessageDecoder, Resolv, Resolver (part).
* Fix zone reader adding unwanted dot to relative hostnames being converted to \ 
absolute.
* Fix default access for tsig options in Resolver.
* Fix ZoneTransfer not to use deprecated SingleResolver.
* Fix Resolver bug in parameter to create_tsig_options.
* Fix tests to always use working copy and not gem.