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

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https://hg.mozilla.org/integration/gaia-central/rev/f9afa260d5a1
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24148 from KevinGrandon/bug_1068888_places_defer_save_appload

Bug 1068888 - [Rocketbar] Debounce place saving until timeout or apploaded

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https://hg.mozilla.org/integration/gaia-central/rev/d7826e288d26
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1068888 - [Rocketbar] Debounce place saving until timeout or apploaded r=daleharvey
Bumping manifests a=b2g-bump