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

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https://hg.mozilla.org/integration/gaia-central/rev/c74107624e0e
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #14976 from KevinGrandon/bug_955713_eme_suggestions_abort

Bug 955713 - [Search] Multiple rows of suggestions can appear

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https://hg.mozilla.org/integration/gaia-central/rev/d6ca81273f3e
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 955713 - [Search] Multiple rows of suggestions can appear