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

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https://hg.mozilla.org/integration/gaia-central/rev/3841cef10219
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #11010 from cctuan/893630

1. watch attentionscreenshow/hide event in statusbar.js to enable/disable clock
2. add test case for timebar display

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https://hg.mozilla.org/integration/gaia-central/rev/97d84179e502
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 893630 - [alarm] when the alarm is triggered when the device is in sleep mode, the system's clock is not updated