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

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https://hg.mozilla.org/integration/gaia-central/rev/4e5c479b9b80
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #25117 from sudheesh001/Patch_953032

Bug 953032 - Adding icon to the keyboard app, r=timdream

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https://hg.mozilla.org/integration/gaia-central/rev/84f356fefeaa
Author: sudheesh001 <sudheesh1995@outlook.com>
Desc: Bug 953032 Adding icon to the keyboard app
Bumping manifests a=b2g-bump