Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/036e72a2314b
Author: Dave Hunt <dave.hunt@gmail.com>
Desc: Bug 994002 - Bump gaiatest version to 0.22. r=fstrugariu
Bumping manifests a=b2g-bump