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

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https://hg.mozilla.org/integration/gaia-central/rev/3c92da853631
Author: Jonathan Griffin <jgriffin@mozilla.com>
Desc: Merge pull request #19607 from jonallengriffin/gu-format

Bug 1014028 - Fix extra | in timeout messages, r=ahal

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https://hg.mozilla.org/integration/gaia-central/rev/05fcb92d585d
Author: Jonathan Griffin <jgriffin@mozilla.com>
Desc: Bug 1014028 - Fix extra | in timeout messages, r=ahal
Bumping manifests a=b2g-bump