Bump github.com/miekg/dns from 1.1.4 to 1.1.8 (#1052)

Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.4 to 1.1.8.
- [Release notes](https://github.com/miekg/dns/releases)
- [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release)
- [Commits](miekg/dns@v1.1.4...v1.1.8)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

go.mod

@@ -22,7 +22,7 @@ require (
 	github.com/hashicorp/memberlist v0.1.0
 	github.com/julienschmidt/httprouter v1.1.0 // indirect
 	github.com/lovoo/gcloud-opentracing v0.3.0
-	github.com/miekg/dns v1.1.4
+	github.com/miekg/dns v1.1.8
 	github.com/minio/minio-go v0.0.0-20190131015406-c8a261de75c1
 	github.com/mozillazg/go-cos v0.11.0
 	github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223

go.sum

@@ -169,6 +169,8 @@ github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0j
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/miekg/dns v1.1.4 h1:rCMZsU2ScVSYcAsOXgmC6+AKOK+6pmQTOcw03nfwYV0=
 github.com/miekg/dns v1.1.4/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
+github.com/miekg/dns v1.1.8 h1:1QYRAKU3lN5cRfLCkPU08hwvLJFhvjP6MqNMmQz6ZVI=
+github.com/miekg/dns v1.1.8/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
 github.com/minio/minio-go v0.0.0-20190131015406-c8a261de75c1 h1:jw16EimP5oAEM/2wt+SiEUov/YDyTCTDuPtIKgQIvk0=
 github.com/minio/minio-go v0.0.0-20190131015406-c8a261de75c1/go.mod h1:vuvdOZLJuf5HmJAJrKV64MmozrSsk+or0PB5dzdfspg=
 github.com/mitchellh/go-homedir v0.0.0-20180523094522-3864e76763d9/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=