Add Benjie and interface/object field deprecation topic (#1429)

Author: benjie

agendas/2023/11-Nov/16-wg-secondary-eu.md

@@ -104,6 +104,7 @@ who could not make the primary meeting time.
 | Name             | GitHub        | Organization       | Location              |
 | :--------------- | :------------ | :----------------- | :-------------------- |
 | Lee Byron (Host) | @leebyron     | GraphQL Foundation | San Francisco, CA, US |
+| Benjie Gillam    | @benjie       | Graphile           | Chandler's Ford, UK   |
 
 
 ## Agenda
@@ -123,3 +124,6 @@ who could not make the primary meeting time.
    - [Ready for review](https://github.com/graphql/graphql-wg/issues?q=is%3Aissue+is%3Aopen+label%3A%22Ready+for+review+%F0%9F%99%8C%22+sort%3Aupdated-desc)
    - [All open action items (by last update)](https://github.com/graphql/graphql-wg/issues?q=is%3Aissue+is%3Aopen+label%3A%22Action+item+%3Aclapper%3A%22+sort%3Aupdated-desc)
    - [All open action items (by meeting)](https://github.com/graphql/graphql-wg/projects?query=is%3Aopen+sort%3Aname-asc)
+1. Forbid deprecating object field if interface field isn't deprecated (10m, Benjie)
+   - [Spec PR](https://github.com/graphql/graphql-spec/pull/1053)
+   - [GraphQL.js PR](https://github.com/graphql/graphql-js/pull/3986)