validate combined DocC archive for content after assembly, prior to deployment

[heckj]

Affected Package(s)

Repository infrastructure

Task Type

Tooling improvement

Description

When we have a built DocC archive, validate that it passes some baseline expectations for the combined swift docs archive we expect it to be:

• not empty
• expected targets appear, and have content within them (directory names exist at expected locations)
• a set of specific URLS are expected to response with content when the content is hosted (may have to adjust for hosting base path, and combined archive name)

Subtasks or Checklist

No response

Additional Information

No response