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

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https://hg.mozilla.org/integration/gaia-central/rev/cfb69da7fb16
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #18252 from justindarc/bug991396

Bug 991396 - [camera][madai] delete dialogue button should be red and sa... r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/77eb5c1a0f25
Author: Justin D'Arcangelo <justindarc@gmail.com>
Desc: Bug 991396 - [camera][madai] delete dialogue button should be red and say delete
Bumping manifests a=b2g-bump