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

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https://hg.mozilla.org/integration/gaia-central/rev/2653cfb6f8cd
Author: BavarianTomcat <tomcat@mozilla.com>
Desc: Revert "x" since this didn't belong to the parent bug/pull request

This reverts commit 12d2c2d2e448493c8fac14f6c6c07976427ad0c8.
Bumping manifests a=b2g-bump