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

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https://hg.mozilla.org/integration/gaia-central/rev/e832f7bc675f
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #26547 from huchengtw-moz/bug-1101373-footer

Bug 1101373 - [Stingray][home] apply visual spec to filter (footer), r=dwi2

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https://hg.mozilla.org/integration/gaia-central/rev/6a4847ecf13f
Author: John Hu <johu@mozilla.com>
Desc: Bug 1101373 - [Stingray][home] apply visual spec to filter (footer)
Bumping manifests a=b2g-bump