Eliminate instance variable in specs

Author: jmks

spec/meilisearch/client/requests_spec.rb

@@ -4,18 +4,16 @@
   let(:key) { SecureRandom.uuid }
 
   before(:each) do
-    @client = MeiliSearch::Client.new(URL, MASTER_KEY)
-
     expect(MeiliSearch::Client).to receive(:post)
       .with(kind_of(String), hash_including(body: "{\"primaryKey\":\"#{key}\",\"uid\":\"#{key}\"}"))
       .and_call_original
   end
 
   it 'parses options when they are in a snake_case' do
-    @client.create_index(key, primary_key: key)
+    client.create_index(key, primary_key: key)
   end
 
   it 'parses options when they are in a different shape' do
-    @client.create_index(key, priMARy_kEy: key)
+    client.create_index(key, priMARy_kEy: key)
   end
 end