Fixed asgi server distracing issues (#856)
Fixed asgi server distracing issues (#856)

* Fixed asgi server distracing issues

Uvicorn and Daphne sends headers in list not in dict

* Update disttracing.py

* Update disttracing.py

Co-authored-by: Colton Myers <5c2104a3f2e52b0d6677494a4d76622bf2fb81a2@gmail.com>
beniwohli/apm-agent-python,beniwohli/apm-agent-python,beniwohli/apm-agent-python,beniwohli/apm-agent-python