Imports of package tracing

PathSynopsis
github.com/open-policy-agent/opa/tracingDeprecated: This package is intended for older projects transitioning from OPA v0.x and will remain for the lifetime of OPA v1.x, but its use is not recommended.
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttpPackage otelhttp provides an http.Handler and functions that are intended to be used to add tracing by wrapping existing handlers (with Handler) and routes WithRouteTag.
net/httpPackage http provides HTTP client and server implementations.