The info box has incorrect "Updated" date

[x746e]

E.g. for AIP 132:

though in the source the block at the top of the file has the correct date:

---
id: 132
state: approved
created: 2019-01-21
updated: 2022-06-02
placement:
  category: operations
  order: 20
---

[ryanmcginnis]

This is a bug that seems to affect all of the AIP pages, regardless of whether updated is included in the file or not.

Another example is AIP 192.

This bug should be fixed. Although some pages have a changelog that reflects the latest changes, the info box gives the impression that a document is out of date.

[ryanmcginnis]

This looks like a better bug to follow for this: aip-dev/site-generator#95