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

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https://hg.mozilla.org/integration/gaia-central/rev/e718a6b92432
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Merge pull request #12532 from EverythingMe/911022-save-search

Bug 911022 - [e.me][feature] Enable search saving

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https://hg.mozilla.org/integration/gaia-central/rev/e359357987b7
Author: Amir Nissim <amirn@everything.me>
Desc: Bug 911022 - [e.me][feature] Enable search saving [r=ranbena]