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

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https://hg.mozilla.org/integration/gaia-central/rev/dbc6de7c7214
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #23739 from Achal-Aggarwal/fix-1055975

Bug 1055975 - Bad comparison in libpinyin.js.
r=rudylu

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https://hg.mozilla.org/integration/gaia-central/rev/2691fd47eb83
Author: Achal-Aggarwal <theachalaggarwal@gmail.com>
Desc: Bug 1055975 - Bad comparison in libpinyin.js
Bumping manifests a=b2g-bump