chore(deps): bump github.com/miekg/dns from 1.1.43 to 1.1.50 (#385)

Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.43 to 1.1.50.
- [Release notes](https://github.com/miekg/dns/releases)
- [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release)
- [Commits](https://github.com/miekg/dns/compare/v1.1.43...v1.1.50)

---
updated-dependencies:
- dependency-name: github.com/miekg/dns
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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vendor/github.com/miekg/dns/doc.go

@@ -251,7 +251,7 @@ information.
 EDNS0
 
 EDNS0 is an extension mechanism for the DNS defined in RFC 2671 and updated by
-RFC 6891. It defines an new RR type, the OPT RR, which is then completely
+RFC 6891. It defines a new RR type, the OPT RR, which is then completely
 abused.
 
 Basic use pattern for creating an (empty) OPT RR: