feat(libdd-trace-utils): check for empty value in header datadog-client-computed-stats#1900

gh-worker-dd-mergequeue-cf854d[bot] merged 4 commits into

mainDataDog/libdatadog:mainfrom

duncan-harvey/datadog-client-computed-statsDataDog/libdatadog:duncan-harvey/datadog-client-computed-statsCopy head branch name to clipboard