Add "Contingency plan" to March2022 agenda

Author: IvanGoncharov

agendas/2022-03-30.md

@@ -62,6 +62,7 @@ Example agenda item:
 1. Review previous meeting's action items (5m, Ivan)
     - [All action items](https://github.com/graphql/graphql-js-wg/issues)
     - [Require opt-in to allow `@defer`/`@stream`](https://github.com/robrichard/defer-stream-wg/discussions/12)
+1. [Contingency plan](https://github.com/graphql/graphql-js/issues/3382#issuecomment-1083382448) (5m, Ivan)
 1. Canary Releases [`graphql-js#3383`](https://github.com/graphql/graphql-js/issues/3383)
    1. Potential concerns with current implementation (5m, Saihaj)
 1. Road to ESM [`graphql-js#3361`](https://github.com/graphql/graphql-js/pull/3361) (10m, Saihaj)