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

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https://hg.mozilla.org/integration/gaia-central/rev/bd8947269b58
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #26225 from crh0716/1092104

Bug 1092104 - Always show the first level items r=eragonj

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https://hg.mozilla.org/integration/gaia-central/rev/f2b27fd4dd87
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 1092104 - Always show the first level items
Bumping manifests a=b2g-bump