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

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https://hg.mozilla.org/integration/gaia-central/rev/f155f8ab67a6
Author: Andrew Sutherland <asutherland@asutherland.org>
Desc: Merge pull request #26250 from asutherland/email-reader-move-pred

Bug 1100860 - [email/UI] message_reader should filter move targets. r=jrburke

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https://hg.mozilla.org/integration/gaia-central/rev/813e4e17f9e5
Author: Andrew Sutherland <asutherland@asutherland.org>
Desc: Bug 1100860 - [email/UI] message_reader should filter move targets

The message_list card already does this.  Without this fix it's possible
to break the back-end, at least for ActiveSync.  Spinning off a separate
bug to harden the back-end, specifically ActiveSync.
Bumping manifests a=b2g-bump