Update module github.com/prometheus/client_golang to v1.11.0

This MR contains the following updates:

Package	Type	Update	Change
github.com/prometheus/client_golang	require	minor	v1.10.0 -> v1.11.0

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Release Notes

prometheus/client_golang

v1.11.0

Compare Source

• [CHANGE] Add new collectors package. #​862
• [CHANGE] prometheus.NewExpvarCollector is deprecated, use collectors.NewExpvarCollector instead. #​862
• [CHANGE] prometheus.NewGoCollector is deprecated, use collectors.NewGoCollector instead. #​862
• [CHANGE] prometheus.NewBuildInfoCollector is deprecated, use collectors.NewBuildInfoCollector instead. #​862
• [FEATURE] Add new collector for database/sql#DBStats. #​866
• [FEATURE] API client: Add exemplars API support. #​861
• [ENHANCEMENT] API client: Add newer fields to Rules API. #​855
• [ENHANCEMENT] API client: Add missing fields to Targets API. #​856

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go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/openzipkin/zipkin-go v0.2.5
 	github.com/pierrec/lz4 v2.0.5+incompatible // indirect
-	github.com/prometheus/client_golang v1.10.0
+	github.com/prometheus/client_golang v1.11.0
 	github.com/russross/blackfriday/v2 v2.1.0
 	github.com/theckman/go-flock v0.8.0
 	github.com/tstranex/u2f v1.0.0