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

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https://hg.mozilla.org/integration/gaia-central/rev/4422cdddf322
Author: Sherman Chen <shamen.chens@gmail.com>
Desc: Bug 1063249 - Fix search 'http:' or 'app:' within rocketbar r=kgrandon
Bumping manifests a=b2g-bump