fix tests

Author: p

spec/datadog/tracing/transport/http/client_spec.rb

@@ -6,7 +6,7 @@
 RSpec.describe Datadog::Tracing::Transport::HTTP::Client do
   subject(:client) { described_class.new(api) }
 
-  let(:api) { instance_double(Datadog::Tracing::Transport::HTTP::API::Instance) }
+  let(:api) { instance_double(Datadog::Tracing::Transport::HTTP::Traces::API::Instance) }
 
   describe '#initialize' do
     it { is_expected.to be_a_kind_of(Datadog::Tracing::Transport::HTTP::Statistics) }

spec/datadog/tracing/transport/http_spec.rb

@@ -27,7 +27,7 @@
       )
 
       default.apis.each_value do |api|
-        expect(api).to be_a_kind_of(Datadog::Tracing::Transport::HTTP::API::Instance)
+        expect(api).to be_a_kind_of(Datadog::Tracing::Transport::HTTP::Traces::API::Instance)
         expect(api.headers).to include(Datadog::Core::Transport::HTTP.default_headers)
 
         case default_agent_settings.adapter