build(deps): bump google.golang.org/protobuf from 1.33.0 to 1.34.1 in /exporters/otlp/otlpmetric/otlpmetrichttp

build(deps): bump google.golang.org/protobuf from 1.33.0 to 1.34.1 in /exporters/otlp/otlpmetric/otlpmetrichttp #156