[Schema Inaccuracy] Optional fields incorrectly marked as required

[codebutler]

Schema Inaccuracy

Schema 2.11

Expected

These fields should not be marked as required:

• Collection default_locale
• ArticleListItem default_locale
• ArticleListItem translated_content

Reproduction Steps

GET /help_center/collections
GET /articles

[Eclairemoy]

Thanks for flagging this @codebutler