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

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https://hg.mozilla.org/integration/gaia-central/rev/be017a4d1a4f
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #11327 from ganesh7/bug_901111

events only change if valid2

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https://hg.mozilla.org/integration/gaia-central/rev/86d1045013b8
Author: gghosh <ganeshghosh@gmail.com>
Desc: BUG 901111- When editing an event with invalid data, despite the warning, the data is still saved.