Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/3297415e83e7
Author: Kyle Machulis <kyle@nonpolynomial.com>
Desc: Merge pull request #23526 from qdot/fix-940647

Fix 940647

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https://hg.mozilla.org/integration/gaia-central/rev/07bcaebc43f9
Author: Kyle Machulis <kyle@nonpolynomial.com>
Desc: Bug 940647 - Fix format of data in unit test

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https://hg.mozilla.org/integration/gaia-central/rev/96edfcc52e95
Author: Kyle Machulis <kyle@nonpolynomial.com>
Desc: Revert "Revert "Bug 940647 - Move bookmark creation to operator variant app""

This reverts commit 2893542864856b672c05d0e6ed72b289e06cf306.
Bumping manifests a=b2g-bump