provide a schema for each facter release

[bastelfreak]

Use Case

We've some tests in facterDB to validate factsets. Some factsets are created by hand to generated. To ensure they are complete/correct, it would be nice to have a schema we can use to validate the factsets.

Describe the Solution You Would Like

Provide a schema for each facter version factset.

Describe Alternatives You've Considered

A clear and concise description of any alternative solutions or features you've considered.

Additional Context

Add any other context or screenshots about the feature request here.

[joshcooper]

Facter currently does have a schema https://github.com/puppetlabs/facter/blob/main/lib/schema/facter.yaml though it is likely in need of updating. Facter 3 also had a test to verify the output matched the schema, but we seem to have lost that in Facter 4. So for this issue, I think we should:

• Update the facter.yaml schema to include any facts added since the schema was last updated in 71be25d
• Add CONTRIBUTING.md to mention that new facts need to be added to the schema. Currently we're inheriting the org-wide version.
• Add an acceptance test the facter output conforms to the schema on each platform

Some facts that come to mind are os.macosx.extra, processors.extensions, openbsd related facts, dmi.product.version

[github-actions]

Migrated issue to FACT-3474

[AriaXLi]

This is addressed in #2746

[joshcooper]

Fixed in #2746