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

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https://hg.mozilla.org/integration/gaia-central/rev/bd416640972b
Author: Wilson Page <wilsonpage@me.com>
Desc: Bug 1089198 - Tap on message report header, the contextual menu … will be shown r=julien
Bumping manifests a=b2g-bump