Bump github.com/miekg/dns from 1.1.50 to 1.1.68 (#150)

Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.50 to 1.1.68.
- [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release)
- [Commits](https://github.com/miekg/dns/compare/v1.1.50...v1.1.68)

---
updated-dependencies:
- dependency-name: github.com/miekg/dns
  dependency-version: 1.1.68
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -1,9 +1,16 @@
 module go.unistack.org/micro-register-mdns/v3
 
-go 1.16
+go 1.23.0
 
 require (
-	github.com/miekg/dns v1.1.50
+	github.com/miekg/dns v1.1.68
 	go.unistack.org/micro/v3 v3.10.42
-	golang.org/x/net v0.25.0
+	golang.org/x/net v0.40.0
+)
+
+require (
+	golang.org/x/mod v0.24.0 // indirect
+	golang.org/x/sync v0.14.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/tools v0.33.0 // indirect
 )