Add chrisdoherty4 as maintainer (tinkerbell#50)

mergify[bot] · web-flow · commit 2c1c0ba50655 · 2023-05-05T15:40:33.000Z
diff --git a/.github/settings.yml b/.github/settings.yml
@@ -4,6 +4,8 @@ collaborators:
   # Maintainers, should also be added to the .github/CODEOWNERS file as owners of this settings.yml file.
   - username: tstromberg
     permission: maintain
+  - username: chrisdoherty4
+    permission: maintain
   # Approvers
   - username: mmlb
     permission: push
