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

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https://hg.mozilla.org/integration/gaia-central/rev/dc0efbd83dab
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Merge pull request #26070 from yfdyh000/1095902

Bug 1095902 - Remove the two extra characters, r=timdream, f=flod, f=gerard-majax

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https://hg.mozilla.org/integration/gaia-central/rev/ff1f863565a9
Author: YFdyh000 <yfdyh000@gmail.com>
Desc: Bug 1095902 - Remove the two extra characters
Bumping manifests a=b2g-bump