Fix Eelco's Nix team title

[infinisil]

Having spoken with Nix team members, it looks like all are equally empowered, and that it's inaccurate to call Eelco the team lead.

See also https://discourse.nixos.org/t/nixos-foundation-board-giving-power-to-the-community/44552/7?u=infinisil

Ping @NixOS/nix-team, please review

[github-actions[bot]]

🚀 Deployed on https://663197b2a6459559a8d38135--nixos-homepage.netlify.app

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/nixos-foundation-board-giving-power-to-the-community/44552/9

[roberth]

As @infinisil describes, this is an adjustment in our external communication, so not a demotion.

[thilobillerbeck]

since half of the nix team agrees I will merge this now

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/lix-an-independent-variant-of-the-nix-package-manager/44975/27