Stub elastic search setting in spinach tests

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

features/steps/project/elastic/global_search.rb

@@ -8,6 +8,8 @@ class Spinach::Features::GlobalSearch < Spinach::FeatureSteps
   include StubConfiguration
 
   before do
+    stub_application_setting(elasticsearch_search: true, elasticsearch_indexing: true)
+
     Gitlab::Elastic::Helper.create_empty_index
   end
 

features/steps/project/elastic/project_search.rb

@@ -6,6 +6,8 @@ class Spinach::Features::ProjectSearch < Spinach::FeatureSteps
   include StubConfiguration
 
   before do
+    stub_application_setting(elasticsearch_search: true, elasticsearch_indexing: true)
+
     Gitlab::Elastic::Helper.create_empty_index
   end
 

features/steps/project/elastic/snippets_search.rb

@@ -6,6 +6,8 @@ class Spinach::Features::SnippetsSearch < Spinach::FeatureSteps
   include StubConfiguration
 
   before do
+    stub_application_setting(elasticsearch_search: true, elasticsearch_indexing: true)
+
     Gitlab::Elastic::Helper.create_empty_index
   end