Reference docs are often wrong

[joshcooper]

Describe the Bug

For "reasons" our configuration refererence docs are often incorrect, especially when a setting's default value is different between 7.x and 8.x. For example, the default value of strict_variables is correct in 7.x, but wrong in 8.x.

Expected Behavior

The reference documentation should be accurate for each branch.

I would like to see the configuration reference pages generated in CI and checked into the repo, similar to how we handle man pages. That way the list of settings and default values are guaranteed to be accurate for each branch.

This is mostly an issue with the configuration reference, but also includes other documentation like the type & provider docs, which providers support which features, etc. Other changes may be required to puppet-strings for that. See PDOC-262

Additional Context

https://perforce.atlassian.net/browse/PUPDOC-5594
https://perforce.atlassian.net/browse/PUPDOC-5591
https://perforce.atlassian.net/browse/PUPDOC-5562
https://perforce.atlassian.net/browse/PUPDOC-5491
https://perforce.atlassian.net/browse/PUPDOC-5481

[github-actions]

Migrated issue to PUP-12039