Update re-directs post-Quarto

[WardBrian]

ONLY MERGE AFTER #722

Submission Checklist

• [ ] Builds locally
• [ ] New functions marked with <<{ since VERSION }>>
• [ ] Declare copyright holder and open-source license: see below

Summary

This updates the "old version" links for the new file names Quarto produces. The mapping used can be found here: https://gist.github.com/WardBrian/50680156aba6fed85230345329a2eed2 (format is old_url new_url)

This was done in an automated way, so the above document should be authoritative.

Copyright and Licensing

Please list the copyright holder for the work you are submitting (this will be you or your assignee, such as a university or company):

By submitting this pull request, the copyright holder is agreeing to license the submitted work under the following licenses:

• Code: BSD 3-clause (https://opensource.org/licenses/BSD-3-Clause)
• Documentation: CC BY-ND 4.0 (https://creativecommons.org/licenses/by-nd/4.0/)