Changes to GET /sticker-packs/:pack_id

the response property description became required for the status 200

the response property stickers/items/description became required for the status 200

the response property stickers/items/format_type became required for the status 200

the banner_asset_id response's property type changed from no type to string, and format from no format to snowflake for status 200

the cover_sticker_id response's property type changed from no type to string, and format from no format to snowflake for status 200

removed SnowflakeType subschema #1 from the banner_asset_id response property oneOf list for the response status 200

removed SnowflakeType subschema #1 from the cover_sticker_id response property oneOf list for the response status 200

the banner_asset_id response's property pattern ^(0|[1-9][0-9]*)$ was added for the status 200

the cover_sticker_id response's property pattern ^(0|[1-9][0-9]*)$ was added for the status 200