This test is failing often due to an "Unable to autoload constant"
error, that will be fixed after switching to zeitwerk.
Just like it happened in the the "Polls can be listed" test, the reason
seems to be accessing a page containing several ActiveStorage
attachments. However, since this test only makes sense when two or more
images are displayed on the page, we can't change the test so create
just one image.
So, for now, we're commenting the test, and we'll uncomment it again
when we enable zeitwerk in version 2.2.0.
8ba37b295a