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

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https://hg.mozilla.org/integration/gaia-central/rev/570b10d571be
Author: Zac Campbell <zcampbell@mozilla.com>
Desc: Bug 918744 - xfail test_gallery_edit_photo due to causing Gallery app to crash. r=alint