Fix RSpec/ExpectInHook cop (#25100)

spec/controllers/api/v1/media_controller_spec.rb

@@ -15,23 +15,19 @@ RSpec.describe Api::V1::MediaController do
   describe 'POST #create' do
     describe 'with paperclip errors' do
       context 'when imagemagick cant identify the file type' do
-        before do
+        it 'returns http 422' do
           expect_any_instance_of(Account).to receive_message_chain(:media_attachments, :create!).and_raise(Paperclip::Errors::NotIdentifiedByImageMagickError)
           post :create, params: { file: fixture_file_upload('attachment.jpg', 'image/jpeg') }
-        end
 
-        it 'returns http 422' do
           expect(response).to have_http_status(422)
         end
       end
 
       context 'when there is a generic error' do
-        before do
+        it 'returns http 422' do
           expect_any_instance_of(Account).to receive_message_chain(:media_attachments, :create!).and_raise(Paperclip::Error)
           post :create, params: { file: fixture_file_upload('attachment.jpg', 'image/jpeg') }
-        end
 
-        it 'returns http 422' do
           expect(response).to have_http_status(500)
         end
       end