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

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https://hg.mozilla.org/integration/gaia-central/rev/da1b66f8c12f
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #22594 from justindarc/bug1049198

Bug 1049198 - Camera/Video should use mark Color layer as [not visible] ...

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https://hg.mozilla.org/integration/gaia-central/rev/3677006e1531
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1049198 - Camera/Video should use mark Color layer as [not visible] when covered by video
Bumping manifests a=b2g-bump