Autofix Rubocops RSpec/ScatteredLet (#23725)

spec/controllers/admin/domain_blocks_controller_spec.rb

@@ -72,16 +72,15 @@ RSpec.describe Admin::DomainBlocksController, type: :controller do
 
   describe 'PUT #update' do
     let!(:remote_account) { Fabricate(:account, domain: 'example.com') }
-    let(:domain_block)    { Fabricate(:domain_block, domain: 'example.com', severity: original_severity) }
+    let(:subject) do
+      post :update, params: { id: domain_block.id, domain_block: { domain: 'example.com', severity: new_severity } }
+    end
+    let(:domain_block) { Fabricate(:domain_block, domain: 'example.com', severity: original_severity) }
 
     before do
       BlockDomainService.new.call(domain_block)
     end
 
-    let(:subject) do
-      post :update, params: { id: domain_block.id, domain_block: { domain: 'example.com', severity: new_severity } }
-    end
-
     context 'downgrading a domain suspension to silence' do
       let(:original_severity) { 'suspend' }
       let(:new_severity)      { 'silence' }