Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/3dab9e2a505c
Author: Ryan VanderMeulen <ryanvm@gmail.com>
Desc: Merge pull request #25381 from sv99/1070845-r1

Bug 1070845-r1 - [sharedtest] unit test refactoring for new version chai.assert api

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https://hg.mozilla.org/integration/gaia-central/rev/79463279e3bd
Author: sv99 <sv99@inbox.ru>
Desc: Bug 1070845-r1 - [sharedtest] unit test refactoring for new version chai.assert api
Bumping manifests a=b2g-bump