Change ownership of maas-region and maas-agent charms to maas-maintainers

[skatsaounis (Stamatis Katsaounis)]

Hi team,

As the title implies, please move the two maas charms under our team’s ownership:

• maas-region
• maas-agent

Kind regards,
Stamatis

[odysseus-k (Odysseus Kaziolas)]

Hi,

This is done.

Thanks,

Odysseus