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

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https://hg.mozilla.org/integration/gaia-central/rev/a3a79a794f08
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1071884 - Prevent doRenderIcon from logging errors r=kgrandon
Bumping manifests a=b2g-bump