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

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https://hg.mozilla.org/integration/gaia-central/rev/82eacbd0a739
Author: John Hu <johu@mozilla.com>
Desc: Merge pull request #26548 from huchengtw-moz/bug-1105630-remove-useless-css

Bug 1105630 - [Stingray][Home] Remove search box, .command-button class, r=dwi2

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https://hg.mozilla.org/integration/gaia-central/rev/7a5a8c8b15db
Author: John Hu <johu@mozilla.com>
Desc: Bug 1105630 - [Stingray][Home] Remove search box, .command-button class
Bumping manifests a=b2g-bump