fix(deps): update module github.com/prometheus/client_golang to v1.12.1

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

.../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

...prometheus/client_golang/prometheus/go_collector_go117.go

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

...s/client_golang/prometheus/internal/go_runtime_metrics.go

...theus/client_golang/prometheus/process_collector_other.go

...us/client_golang/prometheus/promhttp/instrument_client.go

...us/client_golang/prometheus/promhttp/instrument_server.go

...om/prometheus/client_golang/prometheus/promhttp/option.go