Syndicating to Internet Archive can make requests to syndication endpoint time out

[paulrobertlloyd]

Describe the bug

When syndicating content to the Internet Archive, a capture request is made, and then the status endpoint is polled until it returns details of the archived page. This can sometimes take over a minute or so, which means a call to the syndication endpoint will timeout. Netlify will stop making a request to an endpoint if it returns a 4xx/5xx error more than 6 times.

The syndication endpoint still works however, and a post will get syndicated and updated. Need to think about how I handle this use case.

[paulrobertlloyd]

This may be partially fixed in #437. Will re-enabled on my own site, to see if this issue can be closed.