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

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https://hg.mozilla.org/integration/gaia-central/rev/331d7bdc01ab
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #26662 from KevinGrandon/bug_1103087_collection_inner_html

Bug 1103087 - Collection offline textContent r=Cwiiis

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https://hg.mozilla.org/integration/gaia-central/rev/638c5f901643
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1103087 - Collection offline textContent
Bumping manifests a=b2g-bump