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

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https://hg.mozilla.org/integration/gaia-central/rev/f434a7b8fede
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #26956 from KevinGrandon/bug_1114493_search_installed_apps

Bug 1114493 - [Search] Properly handle install/uninstall methods

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https://hg.mozilla.org/integration/gaia-central/rev/097a9a1f0fa9
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1114493 - [Search] Properly handle install/uninstall methods r=chens
Bumping manifests a=b2g-bump