Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/db1b58311329
Author: Sam Joch <samuel@guiora.com>
Desc: Merge pull request #10025 from pivanov/bug-809093

Bug 809093 - [UX VD] Settings. The list should have shorter horizontal dividers r=samjoch

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https://hg.mozilla.org/integration/gaia-central/rev/c1bf4619e605
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 809093 - [UX VD] Settings. The list should have shorter horizontal dividers