Update module github.com/prometheus/client_golang to v1.19.1

...or/github.com/prometheus/client_golang/prometheus/desc.go

vendor/github.com/prometheus/client_golang/prometheus/doc.go

...m/prometheus/client_golang/prometheus/expvar_collector.go

...r/github.com/prometheus/client_golang/prometheus/gauge.go

...github.com/prometheus/client_golang/prometheus/get_pid.go

...m/prometheus/client_golang/prometheus/get_pid_gopherjs.go

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

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

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

...metheus/client_golang/prometheus/internal/almost_equal.go

...m/prometheus/client_golang/prometheus/internal/difflib.go

...client_golang/prometheus/internal/go_collector_options.go

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

...om/prometheus/client_golang/prometheus/internal/metric.go

.../github.com/prometheus/client_golang/prometheus/labels.go

.../github.com/prometheus/client_golang/prometheus/metric.go

...ub.com/prometheus/client_golang/prometheus/num_threads.go

...ometheus/client_golang/prometheus/num_threads_gopherjs.go

...ithub.com/prometheus/client_golang/prometheus/observer.go

.../prometheus/client_golang/prometheus/process_collector.go