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

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https://hg.mozilla.org/integration/gaia-central/rev/5ea76bf5290b
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Merge pull request #21267 from Cwiiis/bug1031287-squashed

Bug 1031287 - Fix removing transitions from cards in task manager. r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/d090f5a8072b
Author: Chris Lord <chrislord.net@gmail.com>
Desc: Bug 1031287 - Fix removing transitions from cards in task manager. r=alive
Bumping manifests a=b2g-bump