Update affiliation for @nknize. (opensearch-project#15322)

Signed-off-by: dblock <dblock@amazon.com>

Author: dblock

MAINTAINERS.md

@@ -22,7 +22,7 @@ This document contains a list of maintainers in this repo. See [opensearch-proje
 | Varun Bansal             | [linuxpi](https://github.com/linuxpi)                   | Amazon      |
 | Marc Handalian           | [mch2](https://github.com/mch2)                         | Amazon      |
 | Michael Froh             | [msfroh](https://github.com/msfroh)                     | Amazon      |
-| Nick Knize               | [nknize](https://github.com/nknize)                     | Amazon      |
+| Nick Knize               | [nknize](https://github.com/nknize)                     | Lucenia     |
 | Owais Kazi               | [owaiskazi19](https://github.com/owaiskazi19)           | Amazon      |
 | Peter Nied               | [peternied](https://github.com/peternied)               | Amazon      |
 | Rishikesh Pasham         | [Rishikesh1159](https://github.com/Rishikesh1159)       | Amazon      |