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

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https://hg.mozilla.org/integration/gaia-central/rev/57a04c548895
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #26793 from Cwiiis/bug1092327-add-collapse-expand-press-state

Bug 1092327 - Add a press state for the collapse toggle on groups. r=kgrandon

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https://hg.mozilla.org/integration/gaia-central/rev/a1ba82a19d66
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1092327 - Add a press state for the collapse toggle on groups. r=kgrandon
Bumping manifests a=b2g-bump