Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/da0f70e16706
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Merge pull request #18074 from EverythingMe/un-xfail-eme

[993364, 993368] [un-xfail] etmmanager.js, Collection.js

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https://hg.mozilla.org/integration/gaia-central/rev/9d99253a8121
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Bug 993368 - [E.me] [un-xfail] Collections.js [r=ranbena]

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https://hg.mozilla.org/integration/gaia-central/rev/57ec4fa6d717
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Bug 993364 - [E.me] [un-xfail] etmmanager.js [r=ranbena]

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https://hg.mozilla.org/integration/gaia-central/rev/cb70aee2d783
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #17676 from KevinGrandon/bug_967516_enable_device_debug_default

Bug 967516 - Enable DEVICE_DEBUG by default for non production builds r=ochameau

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https://hg.mozilla.org/integration/gaia-central/rev/124e9dde2a7e
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 967516 - Enable DEVICE_DEBUG by default for non production builds r=ochameau
Bumping manifests a=b2g-bump