Update maintainers
Tested-by: mballarini
<project version="3">
- <maintainer email="hkouki@aldebaran-robotics.com">Houssem Kouki</maintainer>
+ <maintainer email="mballarini@softbankrobotics.com">Matthias Ballarini</maintainer>
+ <maintainer email="ngargaud@softbankrobotics.com">Nicolas Gargaud</maintainer>
<project src="doc" />
<qipython name="qibuild">
<setup with_distutils="true" />
