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

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https://hg.mozilla.org/integration/gaia-central/rev/f871f45dc2e2
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #14990 from EverythingMe/partners-api

Bug 957976 - [Rocketbar] Use Everything.me Partners API [r=ranbena, kgrandon]

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https://hg.mozilla.org/integration/gaia-central/rev/02f24a306ba5
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Bug 957976 - [Rocketbar] Use Everything.me Partners API [r=ranbena, kgrandon]
Bumping manifests