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

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https://hg.mozilla.org/integration/gaia-central/rev/444885560fe4
Author: Francisco Jordano <arcturus@ardeenelinfierno.com>
Desc: Merge pull request #23422 from sergi/new_markup

Bug 1043177 - Redesign Contact edit page [r=francisco]

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https://hg.mozilla.org/integration/gaia-central/rev/378e12d5b6b1
Author: Sergi Mansilla <sergi.mansilla@gmail.com>
Desc: Bug 1043177 - Redesign Contact edit page
Bumping manifests a=b2g-bump