Add @luxas to adopters

[luxas]

trafficstars

Hi, thanks for this project, adding myself to adopters ❤️

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

:white_check_mark: matheusfm
:x: luxas
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[matheusfm]

Thanks for the PR, @luxas! I’m glad to hear that the CEL Playground has been helpful to you. Has it been useful at your company as well? If so, would you consider adding your company's name instead? Also, just a reminder to sign the CLA and resolve the conflicts in the PR, please.

[luxas]

Hi! Feel free to add my name on my behalf. Just wanted to mention I'm a user, no need for me to sign CLA and such if not needed.