Bumping gaia.json for 2 gaia revision(s) a=gaia-bump
========
https://hg.mozilla.org/integration/gaia-2_2r/rev/
74caefa86ac7
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #32780 from MariaKolesina/bug-
1218783
Bug
1218783 - shared component gaia_grid_rs has been added r=djf
========
https://hg.mozilla.org/integration/gaia-2_2r/rev/
6dcd41f67461
Author: Maria Kolesina <Maria.Kolesina@Symphonyteleca.com>
Desc: Bug
1218783 - shared component gaia_grid_rs has been added
Pure copy of gaia_grid