[Feature] Support for reverse propagation of request telemetry tags #1855

Support for reverse propagation of request telemetry tags was added to the host (Azure/azure-functions-host#11397) and is available in the latest release.

Complementary functionality will need to be added to the python worker to support this flow for python customers. The field added in v1.12.0 of the protobuf can be used to send tags back to the host from the worker.