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

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https://hg.mozilla.org/integration/gaia-central/rev/c9a05c8f8071
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #22176 from julienw/1011274-increase-timeout

Bug 1011274 - increase mocha timeout when loading blobs r=azasypkin

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https://hg.mozilla.org/integration/gaia-central/rev/79a6f1d6f46a
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 1011274 - increase mocha timeout when loading blobs r=azasypkin
Bumping manifests a=b2g-bump