Probe for 404-Links in Articles/Posts before publishing
To prevent dead-links in Articles (and overall unmaintained articles), add a CI/CD-Stage crawling all external links, and verifying whether they are reachable and not 404'ing.
Requirements
- If this stage fails, the deployment should still be possible (it's optional, and thus treated as warning)
- Link-Crawler should also follow redirects
- The Pipeline-Ouput indictes which external links, in which articles/posts are broken