doc: record March 2022 security release steward

Refs: nodejs/nodejs.org#4487
Refs: nodejs/nodejs.org#4497

Author: richardlau

doc/contributing/security-release-process.md

@@ -23,7 +23,7 @@ The current security stewards are documented in the main Node.js
 | ---------- | -------- | ------------ |
 | NearForm   | Matteo   | 2021-Oct-12  |
 | Datadog    | Bryan    | 2022-Jan-10  |
-| RH and IBM | Joe      |              |
+| RH and IBM | Joe      | 2022-Mar-18  |
 | NearForm   | Matteo   |              |
 | Datadog    | Vladimir |              |
 | RH and IBM | Michael  |              |