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

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https://hg.mozilla.org/integration/gaia-2_0/rev/5a042c68c0f5
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Merge pull request #24902 from justindarc/bug1019120-v2.0

Bug 1019120 - [camera] Recorded video in secure mode doesn't appear in G...

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https://hg.mozilla.org/integration/gaia-2_0/rev/449de3cc611f
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 1019120 - [camera] Recorded video in secure mode doesn't appear in Gallery
Bumping manifests a=b2g-bump