doc: move mikeal to Collaborator Emeriti list

Per conversation with Mikeal, moving to Collaborator Emeriti list.

Mikeal will remain active in Evangelism so you'll still see him around
the org.

PR-URL: https://github.com/nodejs/node/pull/20113
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

README.md

@@ -428,8 +428,6 @@ For more information about the governance of the Node.js project, see
 **Michael Dawson** <michael_dawson@ca.ibm.com> (he/him)
 * [micnic](https://github.com/micnic) -
 **Nicu Micleușanu** <micnic90@gmail.com> (he/him)
-* [mikeal](https://github.com/mikeal) -
-**Mikeal Rogers** <mikeal.rogers@gmail.com>
 * [misterdjules](https://github.com/misterdjules) -
 **Julien Gilli** <jgilli@nodejs.org>
 * [mmarchini](https://github.com/mmarchini) -
@@ -543,6 +541,8 @@ For more information about the governance of the Node.js project, see
 **Aleksey Smolenchuk** <lxe@lxe.co>
 * [matthewloring](https://github.com/matthewloring) -
 **Matthew Loring** <mattloring@google.com>
+* [mikeal](https://github.com/mikeal) -
+**Mikeal Rogers** <mikeal.rogers@gmail.com>
 * [monsanto](https://github.com/monsanto) -
 **Christopher Monsanto** <chris@monsan.to>
 * [Olegas](https://github.com/Olegas) -