Updates Gemfile and gemspec

Author: picandocodigo

elasticsearch-serverless.gemspec

@@ -18,19 +18,19 @@
 require_relative './lib/elasticsearch-serverless/version.rb'
 
 Gem::Specification.new do |s|
-  s.name        = "elasticsearch-serverless"
+  s.name        = 'elasticsearch-serverless'
   s.version     = ElasticsearchServerless::VERSION
-  s.summary     = "Elasticsearch Serverless Client"
-  s.authors     = ["Fernando Briano"]
-  s.email       = "[email protected]"
+  s.summary     = 'Elasticsearch Serverless Client'
+  s.authors     = ['Fernando Briano']
+  s.email       = '[email protected]'
   s.files       = Dir['lib/**/*.rb']
-  s.homepage    =
-    "https://rubygems.org/gems/elasticsearch-serverless"
-  s.license       = "Apache-2.0"
+  s.homepage    = 'https://rubygems.org/gems/elasticsearch-serverless'
+  s.license     = 'Apache-2.0'
 
   s.add_dependency 'elastic-transport', '~> 8'
 
   s.add_development_dependency 'debug', '>= 1.0.0' unless defined?(JRUBY_VERSION)
+  s.add_development_dependency 'elasticsearch-test-runner'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'rspec'
   s.add_development_dependency 'faraday-net_http_persistent'