Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/ca7e00f7dd07
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Revert "Merge pull request #19765 from wilsonpage/1008187"

This reverts commit 392123a9c53fd9a6ccbb1c81908c3176c0647222, reversing
changes made to 54d6512f516564c23e4363ca328b2a453605617b.
Bumping manifests a=b2g-bump