[NEP-18090]: Adding a class for warming up the dataset cache

Adjusting indentation.

Author: soundarya-mv

spec/superset/dataset/warm_up_cache_spec.rb

@@ -5,7 +5,7 @@
   let(:dashboard_id) { 1 }
 
   describe '.perform' do
-		context "Dataset count is not considered" do
+    context "Dataset count is not considered" do
 			let(:response) { nil }
 			before do
 				allow(subject).to receive(:response).and_return(response)
@@ -33,14 +33,14 @@
 					expect(subject.perform).to eq response
 				end
 			end
-		end
+    end
 
     context 'when dashboard has multiple datasets' do
 			let(:dataset_details) do
 				[
-					{"name"=>"client database 1", "datasource_name"=>"datasource 101"},
-					{"name"=>"client database 2", "datasource_name"=>"datasource 102"},
-			 	]
+						{"name"=>"client database 1", "datasource_name"=>"datasource 101"},
+						{"name"=>"client database 2", "datasource_name"=>"datasource 102"},
+				]
 			end
 			let(:api_response) { "Dataset warmed up" }
 			before do