Bump github.com/prometheus/client_golang from 1.1.0 to 1.8.0

Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.1.0 to 1.8.0.
- [Release notes](https://github.com/prometheus/client_golang/releases)
- [Changelog](https://github.com/prometheus/client_golang/blob/master/CHANGELOG.md)
- [Commits](https://github.com/prometheus/client_golang/compare/v1.1.0...v1.8.0

)

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -34,7 +34,7 @@ require (
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/pierrec/lz4 v2.2.6+incompatible // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.1.0
+	github.com/prometheus/client_golang v1.8.0
 	github.com/satori/go.uuid v1.2.1-0.20181028125025-b2ce2384e17b
 	github.com/stretchr/objx v0.2.0 // indirect
 	github.com/stretchr/testify v1.6.1
@@ -42,7 +42,7 @@ require (
 	go.uber.org/atomic v1.6.0
 	go.uber.org/zap v1.16.0
 	google.golang.org/grpc v1.26.0
-	gopkg.in/yaml.v2 v2.2.8
+	gopkg.in/yaml.v2 v2.3.0
 	k8s.io/api v0.16.9
 	k8s.io/apimachinery v0.16.9
 	k8s.io/client-go v0.16.9