MAINTAINERS: add @gutjuri as Org Owner

[kbdharun]

Hi, @gutjuri! You've been an active tldr-pages organization member for over 6 months.

Thanks for sticking around this far and helping out!

According to our community roles documentation, you're now eligible to become an owner in the organization.

That means you will, from now on, be part of the team responsible for performing role changes (like this one!) in the community.
When performing such role transitions, make sure to follow the process described in the COMMUNITY-ROLES.md document.

Is that OK with you? Let us know!

Either way, thanks so much for all the work you've done so far. You rock!

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Edit 1: Used the wrong template, fixed it now.

[gutjuri]

Thanks! I am honored by this proposal and glad to accept. Should I submit a PR to close this issue?

[kbdharun]

Thanks! I am honored by this proposal and glad to accept. Should I submit a PR to close this issue?

Congratulations, I have converted your role to owner.

Yes, Feel free to close this issue with a pull request.