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

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https://hg.mozilla.org/integration/gaia-central/rev/0fe32fdacd50
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #23866 from KevinGrandon/bug_1033468_vhome_smooth_scroll

Bug 1033468 - [VerticalHomescreen] Implement smooth scrolling behavior for scroll-to-top 2*r=Cwiiis

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https://hg.mozilla.org/integration/gaia-central/rev/6d5b22cbae0b
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1033468 - [VerticalHomescreen] Implement smooth scrolling behavior for scroll-to-top 2*r=Cwiiis
Bumping manifests a=b2g-bump