* update reqwest and http crates
remove task_local_extensions
* remove older opentelemetry packages
* remove more legacy and add new otel
* attempt to make features additive
* features are additive
* delete commented out code
* build split
* docs
* more uniform with reqwest::Client
* remove arcs
* slight optimisation
* update readmes
* update changelog
Provides reqwest-tracing with a trait ReqwestOtelSpanBackend, allowing custom fields/behaviour to be defined.
This is a breaking change as the TracingMiddleware signature now requires you to define a ReqwestOtelSpanBackend to provide it with the desired span behaviour.
Co-authored-by: Alessandro Zanin <ale.zanin90@gmail.com>
Co-authored-by: tl-flavio-barinas <flavio.barinas@truelayer.com>
Co-authored-by: Marco Tormento <tl-marco-tormento@users.noreply.github.com>
