Update Cedar Policy maintainer list

[luxas]

Synced with https://github.com/cedar-policy/.github/blob/main/MAINTAINERS.md

• You've provided a link to documentation where the project has approved the maintainer changes.
  • Update MAINTAINERS cedar-policy/.github#31
  • Update MAINTAINERS.md cedar-policy/.github#26
• The maintainer(s) also created or updated their LFX Individual Dashboard profile.
• You've sent an email with the list of email address(es) to cncf-maintainer-changes@cncf.io for invitations to Service Desk and mailing lists. You can just mark this complete if you are only removing people.
• Optional: You've also sent a PR with affiliation updates to cncf/gitdm.
  • Update luxas Upbound affiliation gitdm#1164 I joined Upbound more than two years ago, but seems I forgot to update it in gitdm before now.

[netlify]

✅ Deploy Preview for cncf-license-exceptions canceled.

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[riaankleinhans]

@eitanre2 can you please create / update you profile at https://openprofile.dev/
I will use that to update you email address on the mailing list and CNCF service desk.

[eitanre2]

@eitanre2 can you please create / update you profile at https://openprofile.dev/ I will use that to update you email address on the mailing list and CNCF service desk.

done