Try upping Capybara wait time for flaky test

Connected to #4511

spec/features/requests/form_spec.rb

@@ -863,23 +863,25 @@
           expect(page).to have_button('Request Selected Items', disabled: true)
         end
         it 'unchecking an item when there is another valid item leaves the submit button enabled' do
-          visit 'requests/9935076973506421?aeon=false&mfhd=22579150960006421'
-
-          first_row = page.all('tr[id^=request_]')[0]
-          second_row = page.all('tr[id^=request_]')[1]
-          expect(page).to have_content 'Dirāsāt'
-          expect(page).to have_content 'Jāmiʻah al-Urdunīyah'
-          expect(page).to have_content 'mujallad 26 1999'
-          expect(page).to have_button('Request Selected Items', disabled: true)
-          first_row.check('requestable_selected')
-          first_row.choose('requestable__delivery_mode_22579150960006421_print')
-          second_row.check('requestable_selected_23579150920006421')
-          second_row.choose('requestable__delivery_mode_23579150920006421_print')
-          expect(page).to have_button('Request Selected Items', disabled: false)
-          first_row.uncheck('requestable_selected')
-          expect(page).to have_button('Request Selected Items', disabled: false)
-          second_row.uncheck('requestable_selected_23579150920006421')
-          expect(page).to have_button('Request Selected Items', disabled: true)
+          Capybara.using_wait_time(10) do
+            visit 'requests/9935076973506421?aeon=false&mfhd=22579150960006421'
+
+            first_row = page.all('tr[id^=request_]')[0]
+            second_row = page.all('tr[id^=request_]')[1]
+            expect(page).to have_content 'Dirāsāt'
+            expect(page).to have_content 'Jāmiʻah al-Urdunīyah'
+            expect(page).to have_content 'mujallad 26 1999'
+            expect(page).to have_button('Request Selected Items', disabled: true)
+            first_row.check('requestable_selected')
+            first_row.choose('requestable__delivery_mode_22579150960006421_print')
+            second_row.check('requestable_selected_23579150920006421')
+            second_row.choose('requestable__delivery_mode_23579150920006421_print')
+            expect(page).to have_button('Request Selected Items', disabled: false)
+            first_row.uncheck('requestable_selected')
+            expect(page).to have_button('Request Selected Items', disabled: false)
+            second_row.uncheck('requestable_selected_23579150920006421')
+            expect(page).to have_button('Request Selected Items', disabled: true)
+          end
         end
       end