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

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https://hg.mozilla.org/integration/gaia-central/rev/6cce6b609963
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #26437 from huchengtw-moz/bug-1101369-information-block

Bug 1101369 - [Stingray][home] apply visual to information block, r=dwi2

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https://hg.mozilla.org/integration/gaia-central/rev/d9d8f4dd09c5
Author: John Hu <johu@mozilla.com>
Desc: Bug 1101369 - [Stingray][home] apply visual to information block
Bumping manifests a=b2g-bump