doc: update security release stewards

PR-URL: nodejs#48569
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Ruy Adorno <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>

Author: RafaelGSS

doc/contributing/security-release-process.md

@@ -29,6 +29,7 @@ The current security stewards are documented in the main Node.js
 | NodeSource   | Juan            | 2022-Nov-04  |
 | RH and IBM   | Michael         | 2023-Feb-16  |
 | NearForm     | Rafael          | 2023-Jun-20  |
+| NearForm     | Rafael          |              |
 | Datadog      | Bryan           |              |
 | IBM          | Joe             |              |
 | Platformatic | Matteo          |              |