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

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https://hg.mozilla.org/integration/gaia-central/rev/d49ef76969aa
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #13892 from RudyLu/keyboard/Bug941440_correct_Macedonian_layout

Bug 941440 - The layout of Macedonian keyboard is incorrect - the space
r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/e433a4785523
Author: Rudy Lu <me@rudy.lu>
Desc: Bug 941440 - The layout of Macedonian keyboard is incorrect - the space
key is too small.
 - Correct the width ratio of the space key