Add "Archive GraphQL Playground?" to Feb WG (#1640)

Author: benjie

agendas/2025/02-Feb/06-wg-primary.md

@@ -122,6 +122,7 @@ hold additional secondary meetings later in the month.
 1. Determine volunteers for note taking (1m, Host)
 1. Review agenda (2m, Host)
 1. Check for [ready for review agenda items](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) (5m, Host)
+1. Archive [GraphQL Playground](https://github.com/graphql/graphql-playground)? (5m, Benjie)
 1. Defer/Stream updates (20m, Rob)
    - [Spec update: Move "Path" to it's own section](https://github.com/graphql/graphql-spec/pull/1129) Merge as an editorial fix?
    - [Stream initialCount argument](https://github.com/graphql/defer-stream-wg/discussions/104)