Tests: Requires ostruct in OTel test

.buildkite/run-client.sh

@@ -8,7 +8,7 @@ export RUBY_VERSION=${RUBY_VERSION:-3.2}
 export TRANSPORT_VERSION=${TRANSPORT_VERSION:-8}
 export RUBY_SOURCE=${RUBY_SOURCE:-ruby}
 
-echo "--- :ruby: Building Docker image"
+echo "--- :docker: :ruby: Building Docker image"
 docker build \
        --file $script_path/Dockerfile \
        --tag elastic/elasticsearch-ruby \
@@ -17,7 +17,7 @@ docker build \
        --build-arg RUBY_SOURCE=$RUBY_SOURCE \
        .
 
-echo "--- :ruby: Running $TEST_SUITE tests"
+echo "--- :ruby: Running tests"
 
 docker run \
        -e "ELASTIC_USER=elastic" \

Gemfile

@@ -23,6 +23,7 @@ gem 'debug', '>= 1.0.0' unless defined?(JRUBY_VERSION)
 gem 'elasticsearch-test-runner'
 gem 'faraday-net_http_persistent'
 gem 'opentelemetry-sdk', require: false
+gem 'ostruct'
 gem 'rake'
 gem 'rspec'
 gem 'yard'

spec/api/perform_request_spec.rb

@@ -17,6 +17,7 @@
 
 require 'spec_helper'
 require 'elastic-transport'
+require 'ostruct'
 
 describe 'Perform request args' do
   specs = [