Update module github.com/prometheus/client_golang to v1.12.2

go.mod

go.sum

vendor/github.com/cespare/xxhash/v2/.travis.yml

vendor/github.com/cespare/xxhash/v2/README.md

vendor/github.com/cespare/xxhash/v2/xxhash.go

vendor/github.com/cespare/xxhash/v2/xxhash_amd64.s

vendor/github.com/cespare/xxhash/v2/xxhash_unsafe.go

vendor/github.com/golang/protobuf/proto/registry.go

vendor/github.com/golang/protobuf/ptypes/any.go

vendor/github.com/golang/protobuf/ptypes/doc.go

vendor/github.com/golang/protobuf/ptypes/duration.go

vendor/github.com/golang/protobuf/ptypes/timestamp.go

.../github.com/prometheus/client_golang/prometheus/README.md

...ometheus/client_golang/prometheus/build_info_collector.go

...thub.com/prometheus/client_golang/prometheus/collector.go

...github.com/prometheus/client_golang/prometheus/counter.go

...b.com/prometheus/client_golang/prometheus/go_collector.go

...prometheus/client_golang/prometheus/go_collector_go116.go

...rometheus/client_golang/prometheus/go_collector_latest.go

...thub.com/prometheus/client_golang/prometheus/histogram.go