doc: update my email address

Update email address to reflect move to
Red Hat

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #35121
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

Author: mhdawson

README.md

@@ -180,7 +180,7 @@ For information about the governance of the Node.js project, see
 * [mcollina](https://github.com/mcollina) -
 **Matteo Collina** <matteo.collina@gmail.com> (he/him)
 * [mhdawson](https://github.com/mhdawson) -
-**Michael Dawson** <michael_dawson@ca.ibm.com> (he/him)
+**Michael Dawson** <midawson@redhat.com> (he/him)
 * [mmarchini](https://github.com/mmarchini) -
 **Mary Marchini** <oss@mmarchini.me> (she/her)
 * [MylesBorins](https://github.com/MylesBorins) -
@@ -356,7 +356,7 @@ For information about the governance of the Node.js project, see
 * [mcollina](https://github.com/mcollina) -
 **Matteo Collina** <matteo.collina@gmail.com> (he/him)
 * [mhdawson](https://github.com/mhdawson) -
-**Michael Dawson** <michael_dawson@ca.ibm.com> (he/him)
+**Michael Dawson** <midawson@redhat.com> (he/him)
 * [mildsunrise](https://github.com/mildsunrise) -
 **Alba Mendez** <me@alba.sh> (she/her)
 * [misterdjules](https://github.com/misterdjules) -