[Development] Adding a .gitreview to all repos

[Oswald Buddenhagen]

On Wed, Feb 12, 2025 at 10:43:32AM +0000, Cristian Le via Development wrote:
>I want to gather some feedback about adding a .gitreview file for all repos.
>
our wikis push towards a setup which makes that unnecessary.
init-repository initializes a gerrit remote.
and https://wiki.qt.io/Git-gpush-scripts works just fine without any
setup beyond that.