[website] Fix Snapshot API docs by hosting locally

[jackkoenig]

I've also asked webcrawlers not to index the snapshot API docs, although they still will if elsewhere on the internet links to them.

Contributor Checklist

• Did you add Scaladoc to every public function/method?
• Did you add at least one test demonstrating the PR?
• Did you delete any extraneous printlns/debugging code?
• Did you specify the type of improvement?
• Did you add appropriate documentation in docs/src?
• Did you request a desired merge strategy?
• Did you add text to be included in the Release Notes for this change?

Type of Improvement

• Documentation or website-related

Desired Merge Strategy

• Squash

Release Notes

Previously, we linked to s01.sonatype which allowed rendering doc jars in the browser. As Sonatype has been sunset and Maven Central does not appear to support this, we will have to host the latest snapshot ourselves.

Reviewer Checklist (only modified by reviewer)

• Did you add the appropriate labels? (Select the most appropriate one based on the "Type of Improvement")
• Did you mark the proper milestone (Bug fix: 3.6.x, 5.x, or 6.x depending on impact, API modification or big change: 7.0)?
• Did you review?
• Did you check whether all relevant Contributor checkboxes have been checked?
• Did you do one of the following when ready to merge:
  • Squash: You/ the contributor Enable auto-merge (squash) and clean up the commit message.
  • Merge: Ensure that contributor has cleaned up their commit history, then merge with Create a merge commit.

[seldridge]

Generally looks good. Apologies for making you write make.

[seldridge]

I thought this was unnecessary, but if the timestamp comes from the archive, then it is necessary. Nice catch.

[jackkoenig]

Generally looks good. Apologies for making you write make.

Sometime when I'm bored I'll try out moving the logic to mill and see if its better or worse... it'll almost certainly at least be easier to write code that tracks dependencies properly since I (like most people) am trash at Make.