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

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https://hg.mozilla.org/integration/gaia-central/rev/e0025c43429e
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #26823 from albertopq/1074332-icons-toggle-2

Bug 1074332 - Utility tray improved transtion r=mhenretty

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https://hg.mozilla.org/integration/gaia-central/rev/ffc3d8a7c597
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1074332 - Utility tray improved transtion
Bumping manifests a=b2g-bump