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

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https://hg.mozilla.org/integration/gaia-central/rev/6f3dc82fc5f6
Author: Andrew Sutherland <asutherland@asutherland.org>
Desc: Merge pull request #11629 from asutherland/email-blacklist-imap-caps

Bug 904022 - [email/IMAP] blacklist broken SPECIAL-USE implementations. r=lightsofapollo

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https://hg.mozilla.org/integration/gaia-central/rev/5c019640a826
Author: Andrew Sutherland <asutherland@asutherland.org>
Desc: Bug 904022 - [email/IMAP] blacklist broken SPECIAL-USE implementations. r=lightsofapollo