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

go.mod

go.sum

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

vendor/github.com/cespare/xxhash/v2/testall.sh

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

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

vendor/github.com/cespare/xxhash/v2/xxhash_arm64.s

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

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

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

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

vendor/github.com/golang/protobuf/AUTHORS

vendor/github.com/golang/protobuf/CONTRIBUTORS

vendor/github.com/golang/protobuf/LICENSE

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

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

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

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

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

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