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

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https://hg.mozilla.org/integration/gaia-central/rev/ebf22a695624
Author: Jared Hirsch <ohai@6a68.net>
Desc: Merge pull request #18093 from 6a68/bug-984486-allow-multiple-fxa-formats

Bug 984486 - FxA System app should support both 'accountId' or 'email' fields

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https://hg.mozilla.org/integration/gaia-central/rev/82a2c9853679
Author: Jared Hirsch <ohai@6a68.net>
Desc: Bug 984486 - FxA System app should support both 'accountId' and 'email' fields r=ferjm
Bumping manifests a=b2g-bump